Question

a car travels 420 miles in a period of 210 minutes. find the average velocity of the car in miles per hour over this period of time.

Answer 1

210 minutes =210/60 hrs so in miles per hour it is 420/(210/60)

Answer 2

some arithmetic here maybe
\[\frac{210}{60}=\frac{7}{2}\] and
\[420\div \frac{7}{2}=420\times \frac{2}{7}=120\]

Answer 3

damn fast car

Answer 4

hahaha thank you!

Answer 5

Okay, so the way this works is as follows:
We have went 420 miles. It took 210 minutes.
So we need to take 420/210 to find miles/min.
420/210 = 2
Now we need to multiply this by 60 minutes to find miles/hr.
So our answer is 120 miles/hr for the velocity.
Hope this helps.
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