if a mixture of a 6% acid solution with an 11% acid solution is to be made, how much of each solution is needed to make 10 liters of an 8% acid solution

Answers

Answer 1
x - 6%
y - 11%
We need 10 liters of 8%.
A) x + y = 10
B) .06x + .11y = (10 * .08)
Multiplying equation A by -.06
A) -.06x + -.06y = -.6   Then adding this to B)
B) .06x + .11y = (10 * .08)
.05y = .2
y = 4 liters of 6%
x = 6 liters of 11%


Answer 2
To understand the mixture problems, it is recommended to use
the following table:

                       |   Amount                   Part                       Total
-------------------|-------------------------------------------------------------------
1st Item          |    x                               6%                         0.06x
-------------------|--------------------------------------------------------------------
2nd Item         |    y                              11%                       0.11y
-------------------|-------------------------------------------------------------------
TOTAL           | (x + y) =10                    8%            0.08(10 =0.8)
                             (a)                                                          (b)
a) x + y =10
b) 0.06x +0.11y = 0.8

Solving this equation gives x = 6  and y = 4, in other terms:
 x = 6  at 6% and y = 4 at 11%




Related Questions

factor the trinominal below please

Answers

I cant see it very well but im taking it to be 
x^2 + 15x + 56

7*8 = 56 and 7 + 8 = 15  so it is

(x + 7)(x + 8)

you have 15 x and 56

 so you need two numbers when added equal 15 and when multiplied equal 56

and since they are both positive, the answer also needs to be positive

 so B is the correct answer

In the diagram, AC=BD=17 and BC=3. The length of segment AD is

Answers

The length of ad would also have to be the three also. This is logically because ac and bd would be the two going across making them equal. This meaning to connect the lines together if they were parallel bc and ad lengths would be equivalent.

5x​2​​−320 factored completely?

Answers

First take out the GCF (5)
5(x^2-64)
It's a perfect square so we can go further
5(x+8)(x-8)
First factor out the 5 so you have 5(x2-64). Since (a+b)(a-b)=(a^2-b^2)
(x^2-64)=(x-8)(x+8). So completely factored is 5(x-8)(x+8).

Use the given line(s) from a random number table to select numbers to use in each problem. Select 2 contestants for a game show out of a pool of 50 46547 17395 25765 11325 14071 61688

A. 39, 25 B. 46, 47 C. 4, 6 D. 46, 25

Answers

The solution would be like this for this specific problem:

Given:

46547 17395 25765 11325 14071 61688

 

You want two-digit numbers between 01 and 50, so break it up into chunks of two and eliminate any string that is not between 01 and 50.

 

So, the numbers from the string are:

 

46 54 71 73 95 25 76 51 13 25 14 07 16 16 88

 

Eliminated numbers:

 

54 71 73 95 25 76 51 88

 

Numbers remaining:

46 25 13 14 07 16

 

So, the 2 contestants from a game show out of a pool of 50 would be 46 and 25 (since these are the possible contestants based from the given).

3x + 3 − x + (−7) > 6 what is x

Answers

3x+3-x+(-7)>6

 combine like terms on left side

2x-4>6

add 4 to both sides 2x>10

x=10/2 = 5

x>5

An airplane is flying at 180mph. A jet flying at 330 mph leaves 1 hour later traveling in the same direction. How long will it take for the jet to catch up to the airplane?

Answers

Final answer:

To determine how long it will take for the jet to catch up to the airplane, calculate the time by dividing the distance the airplane covers before the jet starts (180 miles) by the relative speed of the jet to the airplane (150 mph), resulting in 1.2 hours or 72 minutes.

Explanation:

The subject of the question is related to the topic of relative velocity in Mathematics, specifically regarding two objects moving in the same direction. To find out how long it will take for the jet to catch up to the airplane, we need to calculate the relative speed of the two vehicles and the time it takes for one to overtake the other.

The airplane is moving at 180 mph, and the jet is flying at 330 mph. Since the jet leaves one hour later, the airplane would have traveled 180 miles by that time. The relative speed of the jet to the airplane is the difference between their speeds, which is 330 mph - 180 mph, resulting in 150 mph.

To catch up, the jet needs to cover the 180 miles separation distance at a relative speed of 150 mph. We can find the time it takes to catch up by dividing the distance by the relative speed:

Time = Distance ∗ Relative Speed = 180 miles ∗ 150 mph = 1.2 hours.

Therefore, it will take 1.2 hours or 72 minutes for the jet to catch up to the airplane after it starts its pursuit.

Let $abcd$ be a parallelogram. extend $\overline{bc}$ past $b$ to $f$, and let $e$ be the intersection of $\overline{ab}$ and $\overline{df}$. if the areas of triangles $bef$ and $ade$ are 1 and 9, respectively, find the area of parallelogram $abcd$.

Answers

Final answer:

Triangles ade and bef are similar due to equal angles. The ratio of their areas (9:1) means their sides have a ratio of 3:1. Using the properties of parallelograms, the parallelogram's area will be double the area of triangle ade, or 18 square units.

Explanation:

In the given problem, we have a parallelogram abcd and we're asked to find its area. Given the properties of a parallelogram, we know that angle bad equals angle bef. This leads to the conclusion that triangle ade is similar to triangle bef since their angles are the same. As the ratio of their areas is 9:1, it's clear the ratio of their sides is 3:1, since the ratio of the areas of similar figures is the square of the ratio of their corresponding sides.

The parallelogram's area will be double the area of triangle ade, thanks to the properties of a parallelogram (it's made up of two congruent triangles). Therefore, the area of the parallelogram is 18 square units. The important steps here were recognizing the similar triangles and knowing how to calculate a parallelogram's area.

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Eliza Savage received a statement from her bank showing a checking account balance of $324.18 as of January 18. Her own checkbook shows a balance of $487.38 as of January 29. The bank returned all of the cancelled checks but three. The amounts of these three checks are $15.00, $77.49, and $124.28. How much did Eliza deposit in her account between January 18 and January 29?

Answers

Eliza started out with $324.18 on Jan. 18th and had outstanding cheques of $15.00+77.49+$124.28=$216.77. So her actual balance was $324.18-$216.77=$107.41. Now she has $487.38 so $487.38-$107.41=$379.97 balance for the deposited amount. 

PLEASE HELP NEED ASAP! WILL GIVE THE BRAINLIEST TO THE FIRST PERSON WHO ANSWERS!
Write the slope intercept form of the equation of the line through the given point with the given slope.

1. through: (2,-1), slope = 2
2. through: (-2,-3), slope= -1/2
 Thank you!!

Answers

The slope-intercept form of a line is y = mx + b, where m is the slope and b is the y-intercept, x and y are coordinates of a point.  You have the slope in both and a point, so it's your job to fill those into the line equation and solve them for b, like this:
y = mx + b for the first point: -1 = 2(2) + b and - 1 = 4 + b and 5 = b.  Now fill that b value back in with the slope to get that the line is y = 2x + 5.
Now for the second point:
[tex]-3=- \frac{1}{2}(-2)+b [/tex] and
-3= 1 + b and b = -4. Now fill that b value back in with the slope to get the line
[tex]y=- \frac{1}{2} x-4[/tex]

Simplify the expression
9−8b+6b
9−8b+6b
.

9−8b+6b=??
haha last one XD

Answers

You should get it now from my previous answer.

But to apply it.

9 - 8b + 6b
9 + (-8b + 6b)   <- Collect like bases (b)
9 + (-2b)           
9 - 2b

Therefore it simplified is 9 - 2b

How many radians are contained in the angle AOT in the figure? Round your answer to three decimal places

Answers

1 radien = 57.3 degrees

divide you number of degrees by 57.3, and you should have your answer.


hope that helped :)

Answer:

1 radien = 57.3 degrees

Step-by-step explanation:

1 radien = 57.3 degrees

Ben and his housemates signed a lease for an apartment for 12 months for $563 per month of which Ben agreed to pay $215 per month. Which of the following statements best gives the reasons that Ben’s rent payment is an essential (fixed) expense? a. It cannot be eliminated in a later budget, in order to save money. b. Living expenses have a higher priority than any other type of expense. c. The spender controls the amount of the rent by choice of apartment. d. He agreed to pay the same amount every month.

Answers

Answer is D on E2020

Solution:

Cost of apartment(Ben + Housemates) = $ 563 per month

Amount paid by Ben per month = $ 215

Yes, Accommodation provided by someone for fixed amount is an essential Expense.

All the three statements regarding Ben who pays $ 215 per month are true.

a. It cannot be eliminated in a later budget, in order to save money.

b. Living expenses have a higher priority than any other type of expense.

c. The spender controls the amount of the rent by choice of apartment.




How does the volume of an oblique cone change if the height is reduced to 2/5 of its original size and the radius is doubled?

Answers

Given that the height is reduced by 2/5 and the radius is doubled, the new volume will be given by:
V=1/3πr^2h
r=2r
h=2/5h
thus;
V=1/3*π*(2r)^2(2/5h)
=8/15πr^2h
This implies that the new volume will be 8/15 of the original volume

Answer:

Option (D) is correct.

Step-by-step explanation:

Let the initial original height of the cone is h and radius is r.

The volume of original cone is given by

[tex]V=\frac{1}{3}\times \pi r^{2}\times h[/tex]

Now the new height be h' = 2/5 h and radius r' = 2r

So, the new volume be

[tex]V'=\frac{1}{3}\times \pi r'^{2}\times h'[/tex]

[tex]V'=\frac{1}{3}\times \pi\times  2r^{2}\times \frac{2}{5}h[/tex]

[tex]V=\frac{8}{15}\times \pi \times r^{2}h[/tex]

Which answer represents the range of the logarithmic function given below? F(x) = log7 x
A. x>=0
B. x<0
C. x>0
D. All real numbers

Answers

For your info, the answers A, B, C, D represents the DOMAIN and not te RANGE. However find here below the DOMAIN & te RANGE

f(x) = log₇(x). Whatever is the base, the domain is x>0 and the ASYMPTOTE
is x=0. Hence the DOMAIN is x>0 (answer C)
Regarding the range their is no limitation and the range is:
 -∞ <y< +∞
or
Range = {y / y ∈ R}

Range of the logarithmic function F(x) = log7 x is C. x > 0.

What is a logarithm?

The logarithm is exponentiation's opposite function in mathematics.

This indicates that the exponent to which b must be raised in order to obtain a number x is the logarithm of x to the base b. For instance, because 100 = 10², the logarithm of 100 in base 10 is 2, or log10 = 2.

In the given question, F(x) = log7 x.

Assuming log7 x = y.

Therefore, x is the value equal to [tex]7^y[/tex], hence it can not be zero and negative.

Even if y is equal to zero [tex]7^y[/tex] would be 1.

∴ The range of the logarithmic function F(x) = log7 x is x > 0.

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Express log2 6 + log2 7 as a single logarithm.

Answers

use the basic rule of logs for multiplication:

log a + log b = log a*b

Here you are adding two logs to the base 2, and your result will also be a log to the base 2.

log to the base 2 of 6    PLUS   log to the base 2 of 7   results in:
"log to the base 2 of 6*7," or "log to the base 2 of 42."

Answer:  The correct option is (C) [tex]\log_242.[/tex]

Step-by-step explanation:  We are given to express the following logarithmic expression as a single logarithm :

[tex]E=\log_26+\log_27~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(I)[/tex]

We will be using the following logarithmic property :

[tex]\log_ab+\log_ac=\log_a(bc)[/tex]

So, from expression (i), we get

[tex]E=\log_26+\log_7=\log_2(6\times 7)=\log_242.[/tex]

Thus, the required single logarithm is [tex]\log_242.[/tex]

Option (C) is CORRECT.

The equation y = ax describes the graph of a line. If the value of a is negative, the line

Answers

The equation y = ax represents a straight line with slope a. If a is negative, the line slopes downward to the right, not down and to the left.

The equation y = ax describes the graph of a line. The & in the equation appears to be a typo and should likely refer to a. The constant a represents the slope of the line. When the slope a is negative, the line slopes downward as it moves to the right on a coordinate plane. This is because a negative slope indicates that as the independent variable (usually the x-axis) increases, the dependent variable (y-axis) decreases. A line with a negative slope is straight, and its steepness depends on the absolute value of the slope a. Thus, the line goes down and to the left.

The table shows the mean daily temperature in North Dakota during a week in February. Which statement about the data is true?
A.The Lowest mean temperature was on wednesday
B.The lowest temperature was on friday
C.The highest mean temperature was on friday
D.The highest mean temperature was on monday

Answers

answer is top right

Lowest mean temp was on Friday (it was NEG 1.7)

The correct option is 2nd option i.e., the lowest mean temperature is on Friday.

The mean temperature in North Dakota during a week in February.

We have to find which statement is true.

What is the method to find mean ?

The mean can be calculated by adding all the given numbers and then dividing by the total no. of numbers.

As per the question ;

Mean daily temperature is given in a table.

Let's arrange these temperatures day wise from highest mean temperature to lowest mean temperature.

i.e.,

Tuesday - 1.3°F > Monday - 1°F > Wednesday - 0°F > Thursday > -1.2°F > Sunday - -1.4°F > Saturday > - 1.5°F > Friday - -1.7°F

So ;

The highest mean temperature is on Tuesday of 1.3°F.

The lowest mean temperature is on Friday of -1.7°F.

Thus , the correct option is 2nd option i.e., the lowest mean temperature is on Friday.

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The line with m = -1 /2 and b = 1

Answers

What do you need?

If you need to write an equation then


answer is

y = -1/2x +1

hope it helps

Help. Solve for x. Show your work.
a. picture one show your work
b. picture 2 show your work

Answers

Secants from the same point have the same product of length to the near intersection times length to the far intersection from the point.


1) 5(5+x) = 6(6+4)

... 25 + 5x = 60 . . . . eliminate parentheses using the distributive property

... 5x = 35 . . . . . . . . subtract 25

... x = 7 . . . . . . . . . . . divide by 5



2) The same rule applies.

... 3(3+5) = 4(4+x)

... 24 = 16 + 4x . . . . . eliminate parentheses

... 8 = 4x . . . . . . . . . . . subtract 16

... 2 = x . . . . . . . . . . . . divide by 4

The measures of an exterior angle and the adjacent interior angle add up to 360 because they form a linear pair

A.True
B.False

Answers

The statement is false.

Explanation:
An exterior angle and its adjacent interior angle fall together on a straight line to form a linear pair.
Because the sum of adjacent angles on a straight line is 180⁰ (not 360⁰), the statement is false.

Answer: false

Step-by-step explanation:

How to find 0.36 repeating in a equivalent fraction form?

Answers

[tex]x=0.\overline{36}\\ 100x=36.\overline{36}\\ 100x-x=36.\overline{36}-0.\overline{36}\\ 99x=36\\ x=\dfrac{36}{99}=\dfrac{4}{11} [/tex]

To convert 0.36 repeating into a fraction, we get [tex]\frac{4}{11}[/tex].

To convert the repeating decimal 0.36 repeating (written as 0.363636...) into a fraction, follow these steps:

Let x = 0.363636...Multiply both sides of the equation by 100 (since the repeating part is two digits long):

⇒ 100x = 36.363636...

Subtract the original equation from this new equation:

⇒ 100x - x = 36.363636... - 0.363636...

⇒ 99x = 36

Solve for x:

⇒ x = [tex]\frac{36}{99}[/tex]

Simplify the fraction by finding the greatest common divisor (GCD) of 36 and 99, which is 9:

⇒ x = ([tex]\frac{36}{99}[/tex]) / ([tex]\frac{99}{9}[/tex]) = [tex]\frac{4}{11}[/tex]

Therefore, the fraction equivalent of 0.36 repeating is [tex]\frac{4}{11}[/tex].

Sarah drove 3 hours more than michael on their trip to texas. if the trip took 37 hours, how long did sarah and michael each drive?

Answers

37-3 = 34

34/2 = 17

Michael drove 17 hours

Sarah drove 20 hours  (17+3)


The algebraic expression would be x+x+3=37

The answer would be that Michael drove 17 hours and Sarah drove 20 hours.

Work:

x+x+3=37
(combine like-terms)
2x+3=37
(subract 3 from each side of the equation)
2x=34
(divide 2 from each side of the equation)
x=17

17 would be the number of hours that michael drove but since sarah drove 3 hours longer you add 3 so then sarah drove 20 hours.

Given the function f(x) = 0.5(3)x, what is the value of f−1(7)? 1) 0.565 2) 1.140 3) 1.771 4) 2.402

Answers

y = .5(3)x = 1.5x
The inverse is x = 1.5 y which is f^-1(x)
Then y = x/1.5
f^-1(7) = 7/1.5 = 14/3 which is not an answer.
Is the problem written correctly.

Answer:7=0.5 |x-4| -3

+3                +3

10=0.5 |x-4|

10/0.5=0.5/0.5 |x-4|

20=|x-4|

            ^

-20=x-4   20=x-4

 +4    +4    +4    +4

-16=x       24=x

The answers are -16=x and 24=x

Hope this helps, an if it pleases you put as the brainliest answer!

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Step-by-step explanation:

a truck is going to a village and stops to see four trucks. how many trucks are going to the village?

Answers

Originally, one truck was going to a village. It later stopped to see four trucks, so currently, no trucks are going to the village. 

The truck going to the village remains one.

This question appears to be an example of logical reasoning. If a truck is going to a village and stops to see four trucks, the number of trucks going to the village is still one. The fact that the truck stops to see four other trucks does not change its own path or destination.

Find the product. (7 - 10x)2

Answers

The product of 7-10x and 2 is 14-20x

It should have been written as:

(7-10x)^2  the ^2 means that the parenthetic term is squared, not multiplied by 2.

(7-10x)^2

100x^2-140x+49

That's the answer B.

Line AB has endpoints A(-4,5) and B(3,5). What is the x-coordinate of a point C such that B is the midpoint of line AC

Answers

easy peasy

the midpoint between [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is
[tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
just average them

so given that (3,5) is the midpoint of (-4,5) and (x,y)
[tex](\frac{-4+x}{2},\frac{5+y}{2})=(3,5)[/tex]
so by logic
[tex]\frac{-4+x}{2}=3[/tex] and [tex]\frac{5+y}{2}=5[/tex]
times both sides by 2 for everybody
-4+x=6 and 5+y=10
add 4 to both sides for left one and minus 5 from both sides for right
x=10 and y=5

the coordinate of point C is (10,5)
the x coordinate is 10

Write the expression as either the sine, cosine, or tangent of a single angle.

sine of pi divided by two times cosine of pi divided by seven plus cosine of pi divided by two times sine of pi divided by seven.

Answers

Note that
sin(x + y) = sin(x) cos(y) + cos(x) sin(y).

Therefore by setting x = π/2 and y = π/7, obtain
sin(π/2 + π/7) = sin(π/2)*cos(π/7) + cos(π/2)*sin(π/7)

The right side is what we want to evaluate.  It is equal to
sin(π/2 + π/7) = sin (9/14)π

Answer:  [tex]sin( \frac{9 \pi }{14}) [/tex]

Help please! I will give Brainliest to most detailed answer:)

The figure shows three right triangles. Triangles JKM, KLM, and JLK are similar.
Theorem: If two triangles are similar, the corresponding sides are in proportion.

Using the given theorem, which two statements help to prove that if segment JL is x, then x^2 = 100?

1.) Segment JL • segment JM = 64
Segment JL • segment LM = 48

 2.)Segment JL • segment JM = 48
Segment JL • segment LM = 36

 3.)Segment JL • segment JM = 64
Segment JL • segment LM = 36

 4.)Segment JL • segment JM = 36
Segment JL • segment LM = 64

*If you can, could you please give an explanation? Thanks.

Answers

Now, the way I got those proportions is something called geometric means. A geometric mean between two numbers a and b is defined 
Whenever you have a situation like this where you have the three similar right triangles with 2 of them within the bigger one, there are three relationships of "geometric means" that are extremely helpful (they are just similar triangles, so you can derive them later too).
I don't want to make this too hard for you the answer is 
D.Segment JL x segment JM = 36 Segment JL x segment LM = 64

what are the discontinuities of the function f(x)= (x^2 - 36)/(4x - 24)

Answers

The function f(x) = (x² - 36)/(4x - 24) has a removable discontinuity at x = 6, due to the fact that at this value the original function's denominator becomes zero.

The function given is f(x) = (x² - 36)/(4x - 24). To find the discontinuities of this function, we must identify values of x that cause the denominator to be zero, as the function would be undefined at those points. Factor the numerator and the denominator to simplify the expression. (x² - 36) can be factored as (x + 6)(x - 6), and (4x - 24) can be factored as 4(x - 6). So, the simplified function is f(x) = (x + 6)/4, but we must exclude the value x = 6 from the domain due to it making the original denominator zero. Therefore, the function is discontinuous at x = 6, which is also known as a point of removable discontinuity because the factor (x - 6) is canceled out in the simplification.

How many combinations with 3 numbers 0-9?

Answers

1st number can be 0-9 = 10 numbers

2nd number can be 0-9 = 10 numbers

3rd number can be 0-9 = 10 numbers

10 * 10 * 10 = 1000 combinations

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Bob's Skate Shop had a profit of $3,563 during the month of August. The company models its profit using P=x^2+10x-12 , where x is the number of skateboards the company sells. How many skateboards did the company sell during the month of August? A. 50 B. 55 C. 60 D. 75 Give an example of spinal reflex and explain how the nervous system functions in this reflex action 1) 8k-(6k-4)=10 show work please2) -12x+8+5x=36 show work please 3) -2y+4=8y-6 Jane is aware that she is sitting in her psychology class and it is almost lunchtime. she is also aware of how tired she is since staying up late to watch a movie. this, if jane is aware of what is going on around her and what is going on within her, then it is safe to say that she is in a A ramp 24 ft long rises to a platform that is 20 ft off the ground. find x , the angle of elevation of the ramp. round your answer to the nearest tenth of a degree. What is the major difference between a persuasive essay and an argumentative essay?An argumentative essay does not try to change a reader's opinion.An argumentative essay does not try to prove a point.An argumentative essay does not use emotions.An argumentative essay does not use facts. What is one way that China affected Japan during the postclassical era John has been diagnosed with alzheimer's disease. while he is quite forgetful, he is still able to recall events from his teenage and young adult years. that is because his _____ is still intact. A board is 27 inches long. How long is the board in centimeters? Use the following conversion: 1 inch is 2.54 centimeters. Grandma baked 96 cookies and gave them to her grandchildren. One of the grandchildren, Cindy, received 5 fewer cookies than she would have received had all of the cookies been evenly divided among the h grandchildren.How many cookies did Cindy receive?Write your answer as an expression. When the linnaean system of classification was first develop in the early 1700s, it had 3 kingdoms by the mid-1900s , it had five kingdoms . Which of the following best explains why the number of kingdoms increased How did the rulers of the Native American, European, and African Empires and Kingdoms secure and sustaine their power The ---- fostered the Scientific Revolution. The invention of navigational devices such as the astrolabe, caravel, and magnetic compass led to technological improvements. It increased world exploration, which improved economic conditions and ----- . NextReset What is an example of a sororal connection? A. a father and mother set of porpoises B. a group of female bottlenose dolphins C. a mother orca and her son D. a pod of male humpback whales What was eliminated as a requirement for immigration in the immigration reform act of 1965?a. marital statusc. total number of immigrants allowed into the countryb. national origind. availablity of immigration based upon ability? How did Greek mathematician Pythagoras come up with the Pythagorean Theorem. Explain In two supplemantary angles, the measure of one angles is 6 more than the twice the measure of the other.the measure of these two angles are Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Line A passes through points (-1, 5) and (3, -1). Line B passes through points (7, 2) and (6, -1). At what point does line A intersect line B? Compare the functions f(x) = x5 and g(x) = 5x by graphing both functions in several viewing rectangles. find all points of intersection of the graphs correct to one decimal place. (enter your answers as a comma-separated list. round any decimal answers to one decimal place.) What is the theme of once upon a time by nadine gordimer? Steam Workshop Downloader