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3 years ago

13

Find the average rate of speed, expressed in miles per hour (unit rate). A post office truck delivered mail on a 9-mile route in

2 hours.
please help ! D:

1 answer:

Fed [463]3 years ago

8 0

Answer:

4.5 miles per hour

Step-by-step explanation:

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nasty-shy [4]

Answer:

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Step-by-step explanation:

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nata0808 [166]

So, since we have a cubic equation with 4 terms, the first thing we should try is factoring by grouping, so:

$12x^3+2x^2-30x+5 =0 \implies \\ 2x^2(6x+1)-5(6x+1)=0 \implies \\ (2x^2-5)(6x+1) = 0$

Now that we've factored our equation, we can use ZPP and break it up:

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3 years ago

32 and 2.56 what is the unit rate

Serggg [28]

12.5

I hope this helped.

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2 years ago

What is the distance formula?

marin [14]

Your answer is D.
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