# Two Mechanics Worked On A Car. The First Mechanic Worked For 15 Hours, And The Second Mechanic Worked (2023)

Mathematics High School

76.25 is the answer because 1525 divided by 20 equals 76.25

## Related Questions

Find the slope of the line through the points (5,2) and (-2,3). Show all steps

To find the slope of a line that passes through two points, the formula is

y2 - y1 / x2 - x1

So, what you do is take the y coordinate in your first point, which in this case is 2, and subtract it from your y coordinate in the second point, which is 3.

3 - 2 = 1
1 / x2 - x1

Now take the x coordinate in your first point, which in this case is 5, and subtract it from the x coordinate in your second point, which is -2.

-2 - 5 = -7

Now you're left with 1 / -7.
1 / -7 = ~-0.14

So the slope is ~-0.14
Hope this helps!!

What is the equation that models the sequence 6,12,24,48

The equation that models the sequence is: 6+6 each time.

To see what equation gives us the sequence, let's first try to find a pattern.
6 to 12 can be: x + 6, 2x, 3x -6.
12 to 24 can be: x + 12, 2x, 3x -12.
24 to 48 can be: x + 24, 2x, 3x - 24.
Let's see if we can find a common pattern.
2x is a common pattern.
n = 2x.
I hope this helps!

Evaluate the expression 8a+b for the given variable. b=3a-2

8 x a = 8 x (-2) = -16

-16 + b = -16 + 3 = -13

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b)Imagine that you earned \$8,425 in one year. If the government enforces a 15% income tax, how much money would you owe in taxes at the end of the year?

In order to find your answer you would take \$8,425 and multiply it by 0.15 and you would get \$1,263.75 as your final answer.

Whats 1 cuded , 2 cuded, and 3 cude in an exoresssion

I do not fully understand your question but I will still try to answer it. One cubed may look like this: 1³. Two: 2³. and Three: 3³. Written in an expression may be a bit difficult, but I may try. 1³- 2³ + 3³ = X. I hoped I helped in a way!

(1/4)^x= 256 [A] -1/4
[B] 1/4
[C] -4
[D] 4

Please explain how you got the answer so I may learn. Thank you!

X= -4
Work: 1^x/4^x=256
1^x= 256 * 4^x
In 1^x = In 256 * 4^x
xIn1 = In 256+ In4^x
x*0= xIn 4 + In 2^8
0= xIn 2^2 + 8In 2
x In 2^2 + 8In 2 =0
x* 2In 2 + 8In 2=0
2In 2x + 8In 2=0
2In 2x = -8In 2
x= -8/2
x=-4

If sin^-1 (x+3) = -pi/6 , x = ?

First recall that is defined only for , which means requires that .

Over this domain, will be invertible, and so taking the sine of both sides, we have

A sum of money is invested at 21% compounded quarterly. About how long will it take for the amount to double

Use 72 rule
72/rate=Time
72÷21=3.4 years

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The basic equation for calculating compound interest is A=P(1+r/n)^(nt). If \$2,200 is invested at an interest rate of 5% per year, Compound quarterly, how much will the investment be worth at the end of 8 years

A=2,200×(1+0.05÷4)^(4×8)
A=3,273.89

( 23 * 432) / 43 * 249 + 236 =

( 23 * 432) / 43 * 249 + 236 =

2484212/43 =

57772.372093 :)

Assume that lines that appear to be tangent are tangent.

Where is the image or graph that we are supposed to be solving?

(1/8) = 4^ (6x+2) [A] Negative 5/6
[B] Negative 7/12
[C] Negative 5/12
[D] Negative 1/12

Please explain how you got the answer so I may learn. Thank you!

1/8=4^(6x+2) take the natural log of both sides

ln(1/8)=(6x+2)ln4 divide both sides by ln4

ln(1/8)/ln4=6x+2 subtract 2 from both sides

[ln(1/8)/ln4]-2=6x divide both sides by 6

x=([ln(1/8)/ln4]-2)/6

x=-3.5/6

x=-7/12

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an 8400 gallon water tank is being drained at the rate of 300 gallons per hour. how long will it take the tank to empty?

It is filling at a rate of 50 gallons per hour. • It is emptying at a rate of 800 gallons per hour... that the answer

The area of a rectangle Is 12cm^2. the width is 4 cm less than the length. find the perimeter

The perimeter would be 14
hope this helps

What is the square root of 25? Also, what does square root mean?

The square root of 25 is 5

The square root of something is what times the same number equals something. For example the square root of 25 is 5 because 5x5 = 25

The square root of 16 would be 4 because 4x4 = 16, and so on.

Square roots that don't equal a specific number are solvable, but that's a whole different lesson.

Hoped I was able to help :)

5 is the square root of 25. Square root means a number that makes some quantity when multiplied by itself. 5x5=25 just like 4 is the square root of 16, since 4x4=16

How many miles can you walk in 4 1/2 hours

We cannot do this question for you as it requires information from you, the questioner. Unless there is a unit rate involved, it's best for you to use your own statistics to answer your question.

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The average personcan walk one mile in 20 minute.
So 4 1/2 hours equal 270 minutes. Divide this by 20 minutes and you should have 13.5 which means that you would walk 13 1/2 miles in 4 1/2 hours.
Hope this helps you!

Brian completed 34 free throws and missed 16. Using experimental probability, how many free throws is he predicted to complete in the next 100 tries? A. 68
B. 36
C. 46
D. 60

D 60 i think im correct

Solve for x 91=5x+16

X=15 Hope this helps

5(15)+16
75+16
91

Find the sum (5x^3+3x^2-5x+4) and (8x^3-5x^2+8x+9)

If you would like to solve(5 * x^3 + 3 * x^2 - 5 * x + 4) + (8 * x^3 - 5 * x^2 + 8 * x + 9), you can calculate this using the following steps:

(5 * x^3 + 3 * x^2 - 5 * x + 4) + (8 * x^3 - 5 * x^2 + 8 * x + 9)= 5 * x^3 + 8 * x^3 + 3 * x^2 - 5 * x^2 - 5 *x + 8 * x + 4 + 9 =13 * x^3 - 2 * x^2 + 3 * x + 13

The correct result would be13 * x^3 - 2 * x^2 + 3 * x + 13.

Shoutout to @neuron

Have an amazing day and stay hopeful!

PLZZZZZZZZZZZ HELLLP!!!!!!!!! Suppose a is larger than b. What is the relationship between 2a and 2b? What is the relationship between -2a and -2b? Justify.

The only relationship between 2a and 2b is 2 because a is not related to be because the unknown number a is labled differently than the unkown number of b. and the relationship of -2a and -2b is -2, they are just playing head games this is a lot more simple than it looks.
good luck with the assignment

Um 2a is bigger than 2b and -2b would be considered bigger
like -6(-2a) is smaller than -3 (-2b)

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