pls answer its 10 points.

Pls Answer Its 10 Points.

Answers

Answer 1

Answer: Choice A)

y + 3 = (2/3)(x - 5)

====================================================

Explanation:

Point slope form is

y - y1 = m(x - x1)

m = 2/3 is the given slope

(x1,y1) = (5,-3) is the point the line goes through

So we have

y - y1 = m(x - x1)

y - (-3) = (2/3)(x - 5)

y + 3 = (2/3)(x - 5)


Related Questions

HELP PLEASE WILL GIVE 30 POINTS !!!!!! Determine the amount you need to invest to have $22,000 dollars in 4 years if you invest at 5% annual interest, compounded quarterly. ADD WORK PLEASE

Answers

Answer:

$18 034.42

Step-by-step explanation:

The formula for the future value of an account paying 5 % annual interest compounded quarterly for four years is

[tex]A = P(1 +\frac{r }{n })^{nt}[/tex]

A = $22 000

r = 0.05

n = 4 times per year

t = 4 years

[tex]22 000 = P(1 +\frac{0.05 }{4 })^{4\times4}[/tex]

[tex]22 000 = P(1 + 0.0125)^{16}[/tex]

[tex]22 000 = P(1.0125)^{16}[/tex]

22 000 = P x 1.220

P = 2 000/1.220

P = $18 034.42

You must invest $18 034.42.

a-5/a divided by 4/a

Answers

Answer:

[tex]\frac{a-5}{4}[/tex]

Step-by-step explanation:

the given equation is

[tex]\frac{a-5}{a} /\frac{4}{a}[/tex]

from the multiplication rules we know that

[tex]\frac{a}{b}/\frac{c}{d}=\frac{a}{b}*\frac{d}{c}[/tex]

so for the given equation changing the sidn of division to multiplication

the equation becomes

[tex]\frac{a-5}{a} * \frac{a}{4}[/tex]

a cancels out from both numerator and denominator

so it becomes

[tex]\frac{a-5}{4}[/tex]

which is the answer

What number comes between 2 and 4

Answers

Answer:

3

Step-by-step explanation:

Count 1 to 5 (1,2,3,4,5). You can see 3 is between 2 and 4.

A number that comes between 2 and 4 would be 3.

Used the concept of a number system that states,

A writing system used to express numbers is known as a number system. It is the mathematical notation used to consistently express the numbers in a particular set using digits or other symbols.

Given that,

Two numbers are 2 and 4.

Let us assume that the number that comes between 2 and 4 is, x

Then,

[tex]x = \dfrac{(2 + 4)}{2}[/tex]

[tex]x = \dfrac{(6)}{2}[/tex]

[tex]x = 3[/tex]

Therefore, the number would be 3 which comes between 2 and 4.

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Using the given scale factor and center dilate the following figures and state the new coordinates

Answers

Answer:

B' = (-8,-1) , C' = (4, 5)

Step-by-step explanation:

The coordinates  of A are (-5,-7)

The coordinates of C are  3 units to the right and 4 up from A.

So for a dilation  factor 3 C' will be 9 to the right and 12 up from A.

C' = (-5 + 9) , (-7 + 12)

=  (4, 5).


The point B is 1 unit to left and 2 up from A.

So B' is (-5 -3) , (-7+ 6)

= (-8, -1).

After a dilation scale factor of 3 centered at A, B'(- 18, - 15), and C'(- 6, - 9).

What are transformations?

Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.

Dilation: The preimage is scaled up or down to create the image.

Reflection: The picture is a preimage that has been reversed.

Rotation: Around a given point, the preimage is rotated to create the final image.

Translation: The image is translated and moved a fixed amount from the preimage.

Given, A triangle ABC.

The coordinate of B is (- 6, - 5), and the coordinate of C is (- 2, - 3).

After a dilation scale factor of 3 centered at A coordinates of B' would be

(- 6×3, - 5×3) = (- 18, - 15) and C'(- 2×3, - 3×3) = (- 6, - 9).

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How much of a spice that is 3% salt should be added to 175 ounces of a spice that is 6% salt in order to make a spice that is 5% salt?
Please Helpppp!!

Answers

Answer:

Let y represents the ounces of first spice.

From the given statements, we draw a table as shown below:

                          ounces of spice        Percentage          ounces of salt

First spice                 y                              3%                            0.03x

Second spice           175                            6%                          175(0.06)

Final  mixture          y + 175                         5%                        (x+15)(0.05)

Now, to solve for y

we have;

Final spice = First spice + second spice

[tex]0.03y + 175(0.06) = (y+175)(0.05)[/tex]

[tex]0.03y+ 10.5= 0.05y+ 8.75[/tex]

Subtract 10.5 on both sides we have;

[tex]0.03y+ 10.5 -10.5= 0.05y+ 8.75 -10.5[/tex]

Simplify:

[tex]0.03y = 0.05y -1.75[/tex]

Subtract 0.05y on both sides

[tex]0.03y -0.05y= 0.05y -1.75-0.05y[/tex]

Simplify:

[tex]-0.02y = -1.75[/tex]

Divide both sides by -0.02, we get;

[tex]y = \frac{-1.75}{-0.02} = 87.5[/tex]

Therefore, 87.5 ounces of spices that is 3% salt should be added to 175 ounces of a spice that is 6% salt in order to make a spice that is 5% salt


It needs 87.5 ounces of spice that is 3% salt.

Further explanation

Order of Operations in Mathematics follow this following rule :

ParenthesesExponentsMultiplication and DivisionAddition and Subtraction

This rule is known as the PEMDAS method.

In working on a mathematical problem, we first calculate operation that is in parentheses, follow by exponentiation, then multiplication or division, and finally addition or subtraction.

Let us tackle the problem !

[tex]\texttt{ }[/tex]

Given:

175 ounces of a spice that is 6% salt

[tex]\texttt{mass of salt from this spice} = s_1 = 6\% \times 175 = 10,5 \texttt{ ounces}[/tex]

[tex]\texttt{ }[/tex]

x ounces of a spice that is 3% salt

[tex]\texttt{mass of salt from this spice} = s_2 = 3\% \times x = 0.03x \texttt{ ounces}[/tex]

[tex]\texttt{ }[/tex]

(175 + x) ounces of a spice that is 5% salt

[tex]\texttt{total mass of salt} = s_1 + s_2[/tex]

[tex]5\% \times ( 175 + x ) = 10.5 + 0.03x[/tex]

[tex]8.75 + 0.05x = 10.5 + 0.03x[/tex]

[tex]0.05x - 0.03x = 10.5 - 8.75[/tex]

[tex]0.02x = 1.75[/tex]

[tex]x = 1.75 \div 0.02[/tex]

[tex]x = 175 \div 2[/tex]

[tex]x = 87.5 \texttt{ ounces}[/tex]

[tex]\texttt{ }[/tex]

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Answer details

Grade: Middle School

Subject: Mathematics

Chapter: Percentage

Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point , Multiplication , Division , Exponent , PEMDAS , percentange , percent , cookies , chocolate , chip , paper , fourth , pieces , Number , 51 , 33 , 1/3

Find the Nonpermissible replacement for y in this expression y-9/y+3

Answers

Answer:

y = - 3

Step-by-step explanation:

Providing you mean (y - 9)/(y + 3) then it is always the variable in the denominator that is going to cause trouble. If it equals zero at any point, it's game over.

It's a little better if you get a result like 0/0. That problem has a "depends" as an answer, but by and large, you don't want to monkey around with 0 in the bottom of a fraction.

y + 3 = 0            Subtract 3 from both sides.

y + 3 - 3 = 0 - 3  Combine

y = - 3

Evaluate − a + ( − b ) −a+(−b) where a = 6 . 0 5 a=6.05 and b = 3 . 6 1 1 b=3.611.

Answers

Answer:

-19.322

Step-by-step explanation:

− a + ( − b ) −a+(−b)

First step is to combine like terms

-a -a + -b + -b

-2a -2b

We know a = 6.05 and b = 3.611

-2 (6.05)  -2(3.611)

-12.1 - 7.222

-19.322

Answer:

Step-by-step explanation:-9.661

if you have 10 cookies and you want to give 1/2 of them to a friend. How many do you give to your friend

Answers

Answer: You would give your friend 5 cookies


Step-by-step explanation:

One half of the cookies, is basically saying divided by two. 10 divided by 2 is 5. To check that answer, multiply 5 by 2, and you will get 10

5 cookies, because 5 plus 5 is ten

Find the equation that represents a line that passes through the point (7,-5) and has slope -4/7

Answers

Answer:

The equation would be y = -4/7x - 1

Step-by-step explanation:

Given that we have the slope and the point, we can solve for the equation using point-slope form.

y - y1 = m(x - x1)

y + 5 = -4/7(x - 7)

y + 5 = -4/7x + 4

y = -4/7x - 1

The equation that represents a line that passes through the point (7,-5) and has a slope of -4/7 is,

⇒ 7y = - 4x - 7

The equation of a line in point-slope form passing through the point

(x₁ , y₁) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Given that,

The equation of line passes through the point (7,-5) and has a slope of -4/7.

Here we have,

[tex](x_1 , y_1) = (7, - 5)[/tex]

And, [tex]m = \frac{- 4}{7}[/tex]

Substitute the given values in the above equation,

[tex]y - y_1 = m (x - x_1)[/tex]

[tex]y - (- 5) = \frac{-4}{7} (x - 7)[/tex]

[tex]y + 5 = \frac{-4}{7} (x - 7)[/tex]

Multiply by 7 on both sides,

[tex]7 (y + 5) = - 4 (x - 7)\\7y + 35 = - 4x + 28\\ 7y =- 4x 28 - 35\\ 7y = - 4x- 7\\[/tex]

So, the equation of a line is,

7y = - 4x - 7

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PLEASE HELP I HAVE 49 POINTS!




show work

Answers

Answer:

1.  y = 2x-4

2 y = -1/2x+3

Step-by-step explanation:

Slope intercept form of the equation is y= mx+b

where m is the slope and b is the y intercept

1.  y- 2x = -4

We need to solve for y

Add 2x to each side

y -2x+2x = 2x-4

y = 2x-4


2 y-3 = -1/2 x

We need to add 3 to each side

y-3+3 = -1/2x +3

y = -1/2x+3

Answer:

1. y = 2x - 4

y = -1/2x + 3

Step-by-step explanation: You have to isolate or get y by itself.

1:

y - 2x = -4

 + 2x    + 2x

y = 2x - 4

2:

y - 3 = -1/2x

  + 3   + 3

y = -1/2x + 3


to the nearest whole degree what angle measure has a tangent of 5.6922

Answers

Answer:

80° has a tangent of 5.6922..

Step-by-step explanation:

We are given value of tangent trigonometric ratio = 5.6922.

We need to find the angle in degrees whose measure has a tangent of 5.6922..

So, we need to find the value of [tex]tan^{-1}(5.6922)[/tex].

On plugging [tex]tan^{-1}(5.6922)[/tex]in calculator, we get

80.03°.

Now, we need to round it to the nearest whole degree.

Therefore, 80.03°≈ 80°.

Therefore, 80° has a tangent of 5.6922..

what is the slope of the line shown
(4, 2) (-4, -2)
m=?

Answers

(4, 2) (-4, -2)


Slope is the change in Y over the change in X


From the two points given:

Slope =( -2 - 2 ) / ( -4 -4)

Slope = -4 / -8

Slope = 1/2

m = 1/2

Jake wants to estimate 15.92+0.85 . How can he use rounding to estimate the sum? What is the estimate?

Answers

Answer:

17

Step-by-step explanation:

15.92 is close to 16

0.85 is close to 1

15.92 + 0.85 is close to 16 + 1

16 + 1 = 17

15.92 + 0.85 is approximately 17

You are working as a locksmith. Of the 50 customers you had today, 15 of them needed a new key for their car. What percentage of today’s customers needed a new key for their car?

How do i figure this out ??

A.0.030%
B.0.3%
C.3%
D.30%
E.300%

Answers

15/50 = x/100
Cross multiply
50x =1500
Get x by itself by dividing.
X is 30
Turn it into a percent
Answer is D

Please help ​What is the equation of a line with a slope of ​ ​ −4 ​ ​ and a point ​ (−2, 5) ​ on the line?

Express the equation in the form of y=mx+b where m is the slope and b is the y-intercept.

Answers

The point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

We have m = -4 and the point (-2, 5). Substitute:

[tex]y-5=-4(x-(-2))[/tex]

[tex]y-5=-4(x+2)[/tex]      use distributive property

[tex]y-5=(-4)(x)+(-4)(2)[/tex]

[tex]y-5=-4x-8[/tex]      add 5 to both sides

[tex]\boxed{y=-4x-3}[/tex]

Answer:

all is work is shown and pictured

I don't get this problem from maths.

Answers

Answer:

100/3 or 33.33

Step-by-step explanation: If the perimeter of the whole figure is 220, we can use that number to solve the equations on the trapezoid.

2(2x-3) + 2(4) + 2(4x+1)

4x - 6 + 8 + 8x + 2

12x + 2

Now we have to set the equation equal to the perimeter to find the value of x

12x + 2 = 220

12x = 218

x = 109/6

Since we are only finding the length of PS, we will plug x into its equation (2x - 3).

2(109/6) - 3

109/3 - 3

109/3 - 9/3

100/3



check the picture below.


[tex]\bf \stackrel{\textit{perimeter of the trapezoid}}{(4x+1)+(4x+1)+(4)+(4)+(2x-3)+(2x-3)} \implies 12x+4[/tex]

Which sign makes the statement true 17/20 ? -11.95

Answers

it is 17/20 > -11.95
Final answer:

To make the statement '17/20 ? -11.95' true, the correct symbol to use is '>'. We find this by comparing the result of 17 divided by 20 (which is 0.85) with -11.95.

Explanation:

The question is asking us to find the correct sign (either less than '<', equal '=', or greater than '>') to make the mathematical statement '17/20 ? -11.95' true.

To solve this, we first need to divide 17 by 20 to get 0.85. Then, we compare this result with -11.95.

Since 0.85 is greater than -11.95, we use the '>' symbol. Thus, the statement '17/20 > -11.95' is true.

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Write the expression (4x-6) x 6(2x+7)

Answers

Answer:

48x² + 96x - 252  

Step-by-step explanation:

    (4x - 6) × 6(2x + 7)    Reorder the factors

= 6(4x – 6)(2x+ 7)          Multiply the binomials

= 6(8x² + 16x - 42)         Remove parentheses

= 48x² + 96x - 252



Multiply.


Express the product in simplest form.




3/9·18=b


2


6


154


5

Answers

Answer:

The answer is 6

Step-by-step explanation:

What you do is this.  

3/9 times 18/1 because you need to make 18 a fraction and then multiply. And you will get 6

Find the constant of proportionality (r)in the equation y=rx.

r = 


Answers

Answer:

Constant of proportionality,  [tex]r = \frac{1}{10}[/tex]

Step-by-step explanation:

Constant of proportionality states that the constant value of the ratio of two proportional quantities x and y,

it is written in the form of y = kx, where k is the constant of proportionality.

Given the equation: [tex]y =rx[/tex]                        .....[1]

where r is the constant of proportionality.

From the table we consider

x = 14 and y = 1.4

Substitute these given values in [1] to solve for r;

[tex]1.4 = r(14)[/tex]

Divide both sides by 14 we get;

[tex]r = \frac{1.4}{14} = \frac{14}{140} = \frac{1}{10}[/tex]

therefore, the Constant of proportionality,  [tex]r = \frac{1}{10}[/tex]

Final answer:

The constant of proportionality, denoted as 'r', represents the ratio between the dependent variable (y) and the independent variable (x) in a linear equation. It determines the rate of change of y with respect to x.

Explanation:

The constant of proportionality, denoted as 'r', represents the ratio between the dependent variable (y) and the independent variable (x) in a linear equation. It determines the rate of change of y with respect to x. For example, in the equation y = rx, 'r' represents how much y changes for every unit change in x.

For instance, if the equation is y = 2x, then the constant of proportionality is 2. This means that for every unit increase in x, y increases by 2 units.

Keywords: constant of proportionality, linear equation, rate of change

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Reagan surveyed a number of her classmates about what time they usually go to bed. Of the fifteen classmates she asked, three said 9 p.m. What percent of the students is this?

Answers

Answer:

20%

Step-by-step explanation:

We can say that 3/15 students usually go to bed at 9 P.M. We can set up a proportion to solve this problem.

3/15=x/100

We cross multiply to find x

15x=300

Divide both sides by 15

x=20

So 20% of the classmates usually sleep at 9 P.M.

Answer:

20% of the students

Step-by-step explanation:

An animal shelter had 9/10 of its crates filled with animals. 1/2 of the filled crates are holding dogs.What fraction of the total number of crates are holding dog?

Answers

Answer:

9/20

Step-by-step explanation:

9/10 times 1/2 equals 9/20

Answer:

9/20

Step-by-step explanation:

What is the equation of the line?? Please help!!

Answers

The point-slope form of a line:

[tex]y-y_1=m(x-x_1)[/tex]

We have the slope m = -4 and the point (8, -7). Substitute:

[tex]y-(-7)=-4(x-8)[/tex]     use distributive property

[tex]y+7=-4x+32[/tex]      subtract 7 from both sides

[tex]y=-4x+25[/tex]      add 4x to both sides

[tex]\boxed{4x+y=25}[/tex]

estimate 782 divided by 50

Answers

Answer: about 15.72

Step-by-step explanation: i used a calculator


The ordered pairs model an exponential decay function.
{(−1,30), (0,21), (1,14.7), (2,10.29)}
What is the function equation?
Enter your answer in the box.
f(x)=

Answers

Answer to your question:

f(x)= 12x


Answer:

f(x)=12 Hope this helps you!


Ellentown college has appoximately 3 times 10 to the 3 power students and pengrove university approximate 30,000 students. how many times as much is the number of students at pengrove university as the number of students at Ellwntown college

Answers

Answer:

Given: Ellentown college has approximately 3 times 10 to the 3 power students and pengrove university approximate 30,000 students.

number of students approximately in Ellentown college = [tex]3 \times 10^3[/tex]

also,

the number of students approximately in Pengrove university = 30,000 or [tex]3 \times 10^4[/tex]

We have to find how many times as much is the number of students at pengrove university as the number of students at Ellentown college.

[tex]\frac{number of students in Pengrove University}{number of students in Ellentown college}[/tex] = [tex]\frac{3 \times 10^4}{3 \times 10^3} = 1 \times 10^1 = 10[/tex]

therefore, 10 times as much is the number of students at pengrove university as the number of students at Ellentown college.

3 X 1,000 + 3 X 10 + 3 X 1/100 + 3 in X 1/1000i in decimal form

Answers

Answer:

3030.033

Step-by-step explanation:

Multiply each piece out and add them together

3 X 1,000 + 3 X 10 + 3 X 1/100 + 3 in X 1/1000

3000 + 30+.03 + .003

3030.033


What is the cheapest way to go to a ball game if the admissions options are as shown? A) $10 for a single B) $15 for a couple C) $20 for a triple D) $35 for a group of four E) $50 for a group of five

Answers

Answer: C

Step-by-step explanation: A = 10 for one person. B = 7.5 for one person. C = 6.67 for one person. D = 8.75 for one person. E = 10 for one person.

Out of all of these, C is the cheapest.

javier opens a savings account with a starting balance of $200 and plans to deposit $75 each week after opening the account and savings over time is represented by the graph below how would the graph change if javier open his account with a starting balance of $300 instead

Answers

If Javier starts with a higher initial balance of $300, the initial point on his savings graph would be higher by $100, and all subsequent points would reflect this initial increase, though the slope of the graph would remain unchanged.

If Javier opens a savings account with a starting balance of $300 instead of $200 and then deposits $75 each week, the graph representing his savings over time would change in the following way:

The initial point on the graph, representing the starting balance, would be higher.

This is because the starting balance would be $300 instead of $200.

After this initial change, the slope of the graph, representing the weekly deposits of $75, would remain the same.

However, every point on the graph after the initial deposit would be $100 higher than it was before because each point on the savings graph accumulates the effects of the higher starting balance.

Colin and Rosie had the same number of cashews at first. Each day, Colin ate 5 cashews and Rosie ate 8 cashews. When Rosie had 4 cashews left, Colin had 10 times as many cashews left as Rosie. How many cashews did each child have at first?

Answers

At the end Rosie had 4 cashews and Colin had 40.

Rosie. Colin
4. 40
12. 45
20. 50
28. 55
36. 60
44. 65
52. 70
60. 75
68. 80
76. 85
84. 90
92. 95
100. 100

Each child had 100 cashews at first.
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