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3 years ago

Steve washed 15 cars in 3 hours.how many cars can he wash in 7 hours?

1 answer:

3 0

35 Cars because, if you times 3 by 5 it equals 15 which means that 1 hour equals 5 cars. So you times 7 by 5 and that will give you the amount of cars that were washed.

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Write a real world situation for 15x-20<130 (greater than or equal to is the symbol)

sammy [17]

15x<130+20, 15x<150 divided both sides by 15 ,the answer is 10

6 0

3 years ago

How do you find y in the rectangle??

expeople1 [14]

34 divided by 14 is 2.42......
Then multiply it by 6 to get your Y.
that is what I think though, I may be wrong

8 0

3 years ago

1) A projectile is thrown upward so that its distance above the ground after t seconds is

leonid [27]

Answer:

After 22 seconds the projectile reach its maximum height of 4,840 units

Step-by-step explanation:

we have

$h(t)=-10t^{2}+440t$

This is a vertical parabola downward (because the leading coefficient is negative)

The vertex is a maximum

Find out the coordinates of the vertex

Convert the quadratic equation in vertex form

Factor -10

$h(t)=-10(t^{2}-44t)$

Complete the square

$h(t)=-10(t^{2}-44t+22^2)+(10)(22^2)$

$h(t)=-10(t^{2}-44t+22^2)+4,840$

Rewrite as perfect squares

$h(t)=-10(t-22)^{2}+4,840$

The vertex is the point (22,4,840)

therefore

After 22 seconds the projectile reach its maximum height of 4,840 units

4 0

3 years ago

The answer for the question I don't know how to slove it

katovenus [111]

You have to multiply and add!

5 0

3 years ago

Simplify (6g4h5)2<br> What is the answer

SVETLANKA909090 [29]

Answer:

12g8h10

Multiply each variable quantity by 2 and combine.

6 0

3 years ago