Question

A car traveling on the taconic parkway travels 84 mike in two hours what is the cars speed (a special type of rate) in miles per hour?

Answer 1

we know that

the speed's formula is equal to

$speed=distance/time$

in this problem we have

$distance=84\ miles\\time=2\ hours$

Substitute the values in the formula

$speed=84/2$

$speed=42\frac{miles}{hour}$

therefore

the answer is

$42\frac{miles}{hour}$