3 years ago

An automobile detailer can detail 20 cars in 10 hours. At this rate, how many cars can he detail in 1 hour?

Mathematics

1 answer:

trapecia [35]3 years ago

5 0

20/10 is 2 so he can detail two cars an hour

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leona has 4 nickles,6 pennies, 4 dimes, and 2 quarter in a change purse.Leona lets her little sister pick a coin at random.if da

victus00 [196]

The probability would be 6/16 or 37.5% because there are 16 coins in total and 6 of them are worth more than 5 cents. :)

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3 years ago

Midpoints B is the midpoint of AC , find x.

PolarNik [594]

B is the midpoint which means both sides are equal to each other:

5x = 3x + 4

Subtract 3x from both sides

2x = 4

Divide both sides by 2

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4 0

3 years ago

Read 2 more answers

What is the inverse of y=2x squared -4

Bumek [7]

$y=2x^2-4\ \ \ |+4\\\\2x^2=y+4\ \ \ |:2\\\\x^2=\dfrac{y+4}{2}\\\\x=\sqrt{\dfrac{y+4}{2}}$

$y^{-1}=\sqrt{\dfrac{x+4}{2}}=\dfrac{\sqrt{x+4}}{\sqrt2}=\dfrac{\sqrt{2(x+4)}}{2}=\dfrac{\sqrt{2x+8}}{2}$

6 0

3 years ago

Math help please =)

a_sh-v [17]

2x - 3 < 11 or 8x -10 < 82: X < 23/2

Part 1
2x-3<11
Add 3 both sides
2x-3+3<11+3
Refine
2x<14
Divide by 2 on both sides
2x / 2 / 14 / 2
Refine
x < 7

Part 2
8x-10<82
Add 10 to both sides
8x-10+10<82+10
Refine
8x<92
Divide by 8
8x / 8 / 92 / 8
Refine
x < 23 / 2

7 0

3 years ago

Two number cubes are rolled for two separate events: event A is the event that the sum of numbers on both cubes is less than 10.

Inessa05 [86]

A event would be five I think and the event of b would be nine

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3 years ago