[tex]\frac{422}{8}=52.75mph[/tex]
A.
[tex]average=\dfrac{distance}{time}\\\\\text{We have}\\\\distance=422\ miles\\\\time=8\ hours.\\\\\text{Substitute:}\\\\\boxed{x=\dfrac{422\ miles}{8\ hours}=52.75\ mph}[/tex]
NEED HELP PLEASE WILL GIVE BRANLIEST !!!!!!!!!!!!!
Triangle LKJ is similar to triangle TSR. Which of the following statements is true?
A.
The slope of JL is equal to the slope of RT.
B.
The slope of KJ is equal to the slope of RT.
C.
The slope of KJ is equal to the slope of TS.
D.
The slope of JL is equal to the slope of SR.
Look at the picture.
Angles KJL and SRT are Corresponding angles. JK is parallel to RS. Therefore
m∠KJL = m∠SRT
A. The slope of JL is equal to the slope of RT.Other method.
Calculate the slope.
The formula of a slope:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have the points J(-6, -6) and L(2, -2). Substitute:
[tex]m=\dfrac{-2-(-6)}{2-(-6)}=\dfrac{-2+6}{2+6}=\dfrac{4}{8}=\dfrac{1}{2}[/tex]
The slope of JL is 1/2.
We have the points R(4, -1) and T(8, 1). Substitute:
[tex]m=\dfrac{1-(-1)}{8-4}=\dfrac{1+1}{4}=\dfrac{2}{4}=\dfrac{1}{2}[/tex]
The slope of RT is 1/2.
From the figure, the slope of RT is the same as the same of JL.
Similar figuresTwo figures are said to be similar if the they have the same shape and the ratio of their corresponding sides are in the same proportion.
From the diagram, both triangle TSR and LJK are similar.
The slope of RT is the same as the same of JL.
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What’s the value of x?
Answer: C: 10
Step-by-step explanation: You need to use the equation a^2+b^2=c^2. So it's 6^2+8^2=x^2.
36+64=100
Square root of 100 is 10
10^2 = 100
The value of n is both 5 times as much as the value of m and 36 more than the value of m. What are the values of n and m ? Explain.
Answer:
Values of n and m is; 45 and 9
Step-by-step explanation:
As per the given statement: The value of n is both 5 times as much as the value of m and 36 more than the value of m.
"value of n is 5 times as much as the value of m" means [tex]n = 5m[/tex]
"value of n is 36 more than the value of m" means [tex]n = 36 +m[/tex]
then we have an equation:
[tex]n = 5m[/tex] ......[1]
[tex]n = 36 +m[/tex] ......[2]
Substitute the value of n from equation [1] to [2] we get;
[tex]5m = 36 +m[/tex]
Subtract m from both sides we get;
5m -m = 36 + m -m
Simplify:
4m = 36
Divide both sides by 4 we get;
m = 9
Substitute the value of m=9 in equation [1];
n = 5(9)
n = 45
Therefore, the value of m = 9 and value of n =45
The value of n is 5 times the value of m and is also 36 more than the value of m. By solving two equations, we can find that the values of n and m are 45 and 9, respectively.
Explanation:The value of n is 5 times the value of m and is also 36 more than the value of m. Let's represent the value of m as x. According to the given information, we can write two equations:
n = 5m
n = m + 36
Now we can solve these equations to find the values of n and m. Substituting the value of n from the first equation into the second equation, we get:
5m = m + 36
Subtracting m from both sides of the equation:
4m = 36
Dividing both sides of the equation by 4:
m = 9
Plugging the value of m back into the first equation, we get:
n = 5(9) = 45
Therefore, the values of n and m are 45 and 9, respectively.
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Which expression is equivalent to 60
Answer:
None of the above
Step-by-step explanation:
a. (10+50) *4
60 *4
240
b. 2 * (19+13)
2* (32)
64
c. ( 120+8)÷3
128/3
42 2/3
d . 4+ 8*8
4 + 64
68
Can someone please help me write a story problem to match the equation above?
Answer:
There was 36 apples and it had to be divided between five friends and they all had to get the exact same number of apples. However, the number o people was odd and the number of apples was even. At the end, how many apples would each kid get and how many would be left.
Step-by-step explanation:
36/5 = 7.2
7 apples X 5 kids = 35 apples in total
36 - 35 = 1 apple left
7 R1
After walking 1/4 mile from home, ham is 1/3 of his way to school. What is the distance between his home in school?
Answer:
3/4
Step-by-step explanation:
If he is 1/3 of the way to school, then the total distance he has to walk is 3 times what he has walked so far:
3*(1/4) -3/4
The distance from home to school is 3/4 mile.
rewrite 3 1 over 5
as a mixed number?
Answer:
3 1/5
Step-by-step explanation:
"1 over 5" means 1/5
3 "1 over 5" would then translate to: 3 1/5
~
Answer:
6 1/5
Step-by-step explanation:
31/5= 6 with one left over
6 1/5 keep denominator the same
Evaluate for a = 7
8a - 4 = _____
8 (7) - 4 =
56 - 4 = 52
I hope this helps! Have a good night!
Jason makes $7 per hour picking up trash. His boss offers to pay him an additional $45 a week for sorting the recycling after work. What are the parameters in this scenario?
Answer:
The parameters are 7 and 45.
Step-by-step explanation:
Let's model the situation.
Let h be the number of hours Jason worked in a week.
Then, his total income is calculated as follows
His hourly charges = $7
Number of hours worked = h
So, hourly charges for the hours he worked = 7h
Additional income offered by his boss = 45
So, his total income per week = 7h + 45
Here, 7, the hourly charge and 45, the additional income are the parameters.
the table below shows the relationship between the number of hours a computer programming project takes and the cost charged by a programmer.
Hours(x) 4 6 8 10
Cost(y) $725 $975 $1225 $1475
Write a linear equation in slope- intercept form that describes the relationship form that describes the relationship in terms of x and y.
How much does the programmer charger per hour?
How much does the programmer charge for a 25-hour long project?
Answer:
y = 125x+225
The programmer chargers a flat fee of 225 and then $125 per hour.
The charge for a 25 hour project is $3350
Step-by-step explanation:
To find the slope (y2-y1)/(x2-x1)
m = (1475-725)/(10-4)
= 750/6
=125
The slope is $125
Using the point slope form of the equation for a line
y-y1 = m(x-x1)
y-725 = 125(x-4)
Distribute the 125
y-725 =125x-500
Add 725 to each side
y-725+725 = 125x-500+725
y = 125x+225
The programmer chargers a flat fee of 225 and then $125 per hour.
If you have a 25 hour long project, let x =25
y = 125(25) + 225
y= 3125+225
y = 3350
The figure below shows a pair of lines crossed by a transversal. All of the angles are labeled with numbers. Using the numbers, give one pair of each of the types of angles listed below.
Answer:
a. Vertical angles: 1 and 4, 2 and 3, 5 and 8, 6 and 7.
b. Supplementary angles: 1 and 2, 2 and 4, 3 and 4, 1 and 3, 5 and 6,
6 and 8, 7 and 8, 5 and 7.
c. Corresponding angles: 1 and 5, 2 and 6, 3 and 7, 4 and 8.
d. Alternate interior angles: 3 and 6, 4 and 5.
e. Alternate exterior angles: 1 and 8, 2 and 7.
Step-by-step explanation:
a. Vertical angles (opposite by the vertex):
1 and 4, 2 and 3, 5 and 8, 6 and 7
b. Supplementary angles (sum 180°):
1 and 2, 2 and 4, 3 and 4, 1 and 3, 5 and 6, 6 and 8, 7 and 8, 5 and 7
c. Corresponding angles (same position respect the right lines and the secant):
1 and 5, 2 and 6, 3 and 7, 4 and 8
d. Alternate interior angles (between the lines but in different position with respect the secant):
3 and 6, 4 and 5
e. Alternate exterior angles (not between the lines and in different position with respect the secant):
1 and 8, 2 and 7
Simplify.
1.567 + 2.345 - 1.83(5)
A) -2,082
B) -5.238
C) 2.082
D) 5.742
Hey there!
In order for you to solve this equation, you could do PEMDAS
[tex][P]arentheses[/tex][tex][E]xponents[/tex][tex][M]ultiplication[/tex][tex][D]ivision[/tex][tex][A]ddition[/tex][tex][S]ubtraction[/tex]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[tex]1.567+2.345-1.83(5)[/tex]
[tex]1.567+2.345= 3.912[/tex]
[tex]3.912- 1.83(5)[/tex]
[tex]1.83(5) = 9.15[/tex]
[tex]3.912 -9.15 = -5.238[/tex]
[tex]\boxed {AnswerB: -5,238}[/tex]
Good luck on your assignment and enjoy your day!
~[tex]LoveYourselfFirst:)[/tex]
Answer:
-5.238
Step-by-step explanation:
Remember your order of operations. Multiplication happens before subtraction.
3.912 - 9.15
-5.238
which function is graphed below?
Answer:
which one was it
Step-by-step explanation:
Answer:
The correct option is C. The given graph represents the function f(x)=sin(x).
Step-by-step explanation:
From the given graph it is clear that the initial value of the function is 0.
The maximum value of function is 1 at [tex]x=\frac{\pi}{2}[/tex].
The minimum value of function is -1 at [tex]x=\frac{3\pi}{2}[/tex].
The period of the function is 2π.
The x-intercepts are 0, π, 2π.
These are the properties of a positive sine function. The given graph represents the function f(x)=sin(x).
Therefore the correct option is C.
To confirm the solution find the value of each function at x=0, and [tex]x=\frac{\pi}{2}[/tex]. The function must be satisfy by the points (0,0) and [tex](\frac{\pi}{2},1)[/tex]
For option (1),
[tex]f(x)=-\cosx[/tex]
[tex]f(0)=-\cos(0)=-1\neq 0[/tex]
Therefore option 1 is incorrect.
For option (2),
[tex]f(x)=\cosx[/tex]
[tex]f(0)=\cos(0)=1\neq 0[/tex]
Therefore option 2 is incorrect.
For option (3),
[tex]f(x)=\sinx[/tex]
[tex]f(0)=\sin(0)=0[/tex]
[tex]f(\frac{\pi}{2})=\sin(\frac{\pi}{2})=1[/tex]
Therefore option 3 is correct.
For option (4),
[tex]f(x)=-\sinx[/tex]
[tex]f(0)=-\sin(0)=0[/tex]
[tex]f(\frac{\pi}{2})=-\sin(\frac{\pi}{2})=-1\neq 1[/tex]
Therefore option 4 is incorrect.
28.45 to the nearest tenth
Answer:
it would be 30
Step-by-step explanation:
you are rounding the tenth so the .45 is not important
you just need to look at 28 which is closer to 30 than it is to 20.
Which of the images above represents a proof of the Pythagorean Theorem? Explain your choice, and then explain how the figure proves the Pythagorean Theorem.
Answer:
The image with 25, 144 and 169 represents proof of the Pythagorean Theorem.
Step-by-step explanation:
The Pythagorean Theorem is used to find the missing side of a right triangle. The formula is a^2 + b^2 = c^2, where 'a' and 'b' represent the legs of the triangle (the ones the form the 90 degree angle) and 'c' represents the hypotenuse (the diagonal across from the 90 degree angle). In the case of the three squares, the area of each square is given. The area of a square is simply the base multiplied by the height, which in the case of a square those dimensions are the same. So, taking the square root of 25 = 5, the square root of 144 =12 and the square root of 169 = 13. If we apply the Pythagorean Theorem formula, we get 5^2 + 12^2 = 13^2, or 25 + 144 = 169. This image proves the Pythagorean Theorem holds true.
The perimeter of a rectangular garden is 30 meters. It’s dimensions are such that the width is one-half it’s length . What is the length of the garden ? 20 meters 10 meters 20 feet 5 meters
The length of the rectangular garden will be 10 meters. Thus, the correct option is B.
Given that:
Perimeter, P = 30 meters
Relation, W = L/2
Let W be the rectangle's width and L its length.
The perimeter of the rectangle will be defined as the total length of all of its sides. So the rectangle's perimeter will be given as,
Perimeter of the rectangle = 2(L + W) units
The length of the garden is calculated as,
30 = 2(L + L/2)
30 = 2 x 3L / 2
3L = 30
L = 10 meters
Thus, the correct option is B.
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Let n be even number, then the next even number greater than n is
Answer:
If N is 38, next even number would be 40
Step-by-step explanation:
Any number ending with 0 2 4 6 8 is even, sorry if this ins't what you were asking I didn't understand completely
Rickey has fraction 7 over 8 of a cup of cereal in a bowl. He then gave two fraction 1 over 4 cups of cereal from his bowl to his little sister. Which of the following best explains the amount of cereal left in Rickey's bowl? fraction 3 over 8, because fraction 7 over 8 minus 2 times fraction 1 over 4 equals fraction 7 over 8 minus fraction 2 over 4 fraction 3 over 8, because fraction 7 over 8 minus 2 times fraction 1 over 4 equals fraction 7 over 8 minus fraction 3 over 4 fraction 1 over 8, because fraction 7 over 8 minus 2 times fraction 1 over 4 equals fraction 7 over 8 minus fraction 2 over 4 fraction 1 over 8, because fraction 7 over 8 minus 2 times fraction 1 over 4 equals fraction 7 over 8 minus fraction 3 over 4
Answer:
Fraction 3 over 8, because fraction 7 over 8 minus 2 times fraction 1 over 4 equals fraction 7 over 8 minus fraction 2 over 4.
Step-by-step explanation:
Rickey has [tex]\frac{7}{8}[/tex] of a cup of cereal in a bowl.
He then gave two [tex]\frac{1}{4}[/tex] or [tex]2\times \frac{1}{4}[/tex] or [tex]\frac{2}{4}[/tex] cups of cereal from his bowl to his little sister.
Amount of cereal left in Rickey's bowl = [tex]\frac{7}{8}- \frac{2}{4}[/tex]
= [tex]\frac{7-4}{8}=\frac{3}{8}[/tex]
So, the answer is -
Fraction 3 over 8, because fraction 7 over 8 minus 2 times fraction 1 over 4 equals fraction 7 over 8 minus fraction 2 over 4.
A taxi company charges $2.50 plus $1.10 for each mile driven.Weite an equation to represent this situation. Use this equation to determine how far you can travel if you have $10.00
The equation representing the taxi company's charges is y = 2.50 + 1.10x. With $10, you can afford to travel approximately 6.82 miles.
Explanation:The taxi company's charges can be represented by a simple linear equation. The basic charge of $2.50 is the y-intercept of the equation, which means it's the starting point before any miles are driven. The $1.10 per mile charge, on the other hand, is the slope of the line and represents the cost for each mile driven.
So the equation to represent this situation would be y = 2.50 + 1.10x where y is the total cost and x is the number of miles driven.
To find out how far you can travel with $10, you would set y to 10 and solve for x:
10 = 2.50 + 1.10x
To solve for x, subtract 2.50 from each side of the equation:
7.50 = 1.10x
Then divide each side by 1.10 to solve for x: x ≈ 6.82
So you could travel approximately 6.82 miles with $10.
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You plan to take a 1150-mile trip in your car, which averages 20 miles per gallon. How many gallons of gasoline should you expect to use
Answer:
57.5 or 58
Step-by-step explanation:
1150 = 20x
Divide both sides by 20 to get 57.5
To be proper, you should say that 58 gallons will be used.
It all depends on the teacher, but I know that mine used to tell me to round these types of things up. If you would like to be more exact, just put 57.5 gallons.
How to express 48+72 in distributive property
Answer:
40+70= 110
8+2=10
110+10=120
Step-by-step explanation:
Hi there! :)
Answer:
120
*The answer must have a positive sign.*
Step-by-step explanation:
Distributive property: a(b+c)=ab+ac
First, you add by the numbers from left to right.
[tex]72+48=120[/tex]
Final answer is 120.
Hope this helps!
Have a nice day! :)
:D
-Charlie
Thanks!
A humidifier uses 30 gallons of water in 8 hours. If the total amount of water available is 45 gallons, how many gallons of water would be left after 7 hours?
Answer:
18.75 PLEASE GIVE BRAINLIEST
Step-by-step explanation:
8 hours = 30 gallons
30 ÷ 8 = 3.75 gallons of water used per hour
3.75 x 7 = 26.25 gallons used in 7 hours
45 - 26.25 = 18.75 gallons left after 7 hours
*WILL MARK BRAINLIEST!! PLEASE ANSWER ASAP!*
what number will the x-coordinate always be in any point that is a y-intercept? Explain!
1) what is the x-coordinate of any y-intercept?
2) explain why that is always the x-coordinate of a y-intercept
For a y-intercept, the x-coordinate will always be 0.
The y-intercept is the point that a line or a function crosses the imaginary line of y, which is between x = -1 and x = 1.
This point is at x = 0, and every y-intercept will always have an x-value of 0, as that is what makes it a y-intercept.
The x-coordinate of any y-intercept is always 0. This is because the y-intercept is the point where the line crosses the y-axis, and along that axis, the x-coordinate never changes from 0.
Explanation:The x-coordinate of any y-intercept is always 0. This is due to the definition of a y-intercept. A y-intercept is a point where the line crosses the y-axis. The x-axis and y-axis intersect at the point (0,0) and along the y-axis, the x-coordinate is always 0 regardless of where you are on that axis.
Imagine a horizontal line across any scatter plot. As this line moves up or down along the y-axis, the x-coordinate remains at 0, because it is not moving left or right along the x-axis. Therefore, this makes the x-coordinate of any y-intercept always 0.
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How much is a quarter?
Answer:
25 cents
or
.25 of a dollar (1.00)
russell , sarah and terry share money in the ratio 2:5:8 , russell gets 120 pound less than terry. how much money do they get each
Answer:
Russell: 40 pounds; Sarah: 100 pounds; and Terry: 160 pounds.
Step-by-step explanation:
The three different amounts of money are 2x, 5x and 8x, or 15x.
Terry gets 8x, whereas Russell gets 2x, and 8x - 2x = 120 pounds.
Solving for x, 6x = 120 pounds, and so x = 20 pounds.
Russell gets 2(20 pounds); Sarah gets 5(20 pounds); and Terry gets 8(20 pounds), or 40 pounds, 100 pounds and 160 pounds. Note that 40 pounds is 120 pounds less than 160 pounds, as required by the problem.
In this ratio problem, the total money is split into 15 portions. Each portion is worth 20 pounds. Russell gets 40 pounds, Sarah gets 100 pounds and Terry gets 160 pounds.
Explanation:The subject of this question is ratios and its application to practical problems. In this problem, Russell, Sarah and Terry share money in the ratio 2:5:8, meaning the total money is shared in 15 portions (2+5+8). As we know that Russell gets 120 pound less than Terry, which would be 6 portions (8 portions for Terry - 2 portions for Russell).
Therefore, each portion of money is equal to 120 pound divided by 6, which is 20 pound. So, Russell receives 2 portions which equals 40 pound (2 x 20), Sarah receives 5 portions which equals 100 pound (5 x 20) and Terry receives 8 portions which equals 160 pound (8 x 20).
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Write each equation in slope intercept form. Identify the rate of change and the Y intercept ( write in coordinate form). Show work!!
Please make sure to include the equation!!
The equation of the given straight line in slope-intercept form is y = 3x + 9. The y-intercept or the point at which the line crosses the y-axis (0,9), and the rate of change or slope of the line is 3.
Explanation:The equation of a line in slope-intercept form is expressed as y = mx + b where m represents the slope of the line, and b represents the y-intercept.
Given the information from the figure, the slope m is 3 and the y-intercept b is 9. Therefore, the equation of the line in slope-intercept form can be written as y = 3x + 9.
The line intersects the y-axis at (0,9) which is the y-intercept in coordinate form. The rate of change, represented by the slope, is 3, which means for every increase of 1 unit on the x-axis, the y-value increases by 3 units.
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PLEASE HELP FOR 48 POINTS PLEASE!
show/explain your answer and work
Answer:
c This is the direct variation
Step-by-step explanation:
The equation for direct variation is y= kx
Solving this for k
y/x =k
So y/x must be a constant
a. 9/3 =3
2/7 does not =3 so this is not a direct variation
b 1/2 = .5
-3/6 = -.5
This is not the same so this is not a direct variation
c. 27/9 =3
18/6 =3
9/3 =3
This is a direct variation with a constant of 3
d 5/-7 = -5/7
1/-3 = -1/3
This is not the same so this is not a direct variation
Answer:
C
Step-by-step explanation:
The equation you are looking for must look something like y = k*x
The easiest way to find it is to try 2 points to see if k would be equal in both cases. Do this for each choice.
A
y = kxx = 5y = 1y = kx1 = k*5k = 1/5y = kxx = 7y = 22 = k*7k = 2/7k is not the same in both case. A is not the answer.
==================
B
Using the steps above
x = 10y = -6k = -6/10 = - 0.6x = 6y = -3k = - 3/6k = -1/2B is not the answer.
=====================
C
x = 3y = 9y = kx9 = k*3k = 9/3k = 3x = 6y = 18y = kx18 = 6k18/6 = 6/6 kk = 3C is the answer
====================
You can try D yourself
David sells two calculators for ₹1500 each .He earns a profit of 25% on
one and suffers a loss of 25% on the other. Find his total profit or loss on
the whole deal. Also calculate it as a percentage
Answer:
gain = 0
% = 0
Step-by-step explanation:
Profit
He sells one for a profit of 25% That means he sells one of them for 100% + 25% = 125%
₹1500 * 125/100 = ₹187500/100 = ₹1875
Loss
Here he sells it for 25% less than the selling price he wanted.
100% - 25% = 75%
₹1500 * 75/100 = ₹112500/100 = ₹1125
Discussion
He should make ₹1500 + ₹1500 = ₹3000 without either profit or loss.
What he actually accomplishes is ₹1125 + ₹1875 = ₹3000
So he has a net gain (loss) of 0.
The % is 0
Solve for y.
PLEASE HELP ME THANK YOU
It's an equilateral triangle. The angles have measure 60°.
Therefore we have the equations:
6x + 6 = 60 subtract 6 from both sides
6x = 54 divide both sides by 6
x = 9
5y + 10 = 60 subtract 10 from both sides
5y = 50 divide both sides by 5
y = 10
Answer:
10. I just took the test
Step-by-step explanation:
34x - 18 = 10x - 9
solve for x
Hello there! Your answer would be x = 9/24.
You want to isolate x, and get everything on the other side of the equation.
Let's start by subtracting 10x from both sides. This will cancel it out on the right side, so our x values are only on the left side.
34x-10x - 18 = 10x-10x - 9
24x - 18 = - 9
Next, you want to add 18 to both sides so the x values are on their own side.
24x - 18+18 = - 9+18
24x = 9
Now our last step is to divide both sides by 24 to finish isolating x.
24/24x = 9/24
x = 9/24
The equation is already simplified, so we don't need to simplify any further. I hope this helps and have a great day!
The solution to the equation 34x - 18 = 10x - 9 is x = 3/8.
The given expression is,
34x - 18 = 10x - 9
Combining like terms.
We can do this by subtracting 10x from both sides, which gives us:
34x - 10x - 18 = -9
Simplifying further, we can combine the x terms:
24x - 18 = -9
Next, we'll add 18 to both sides of the equation:
24x = 9
Finally, we'll divide both sides by 24 to isolate x:
x = 9/24
Simplifying the fraction gives us:
x = 3/8
So the solution to the equation 34x - 18 = 10x - 9 is x = 3/8.
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