Question

If a car travels at an average speed of x miles per hour, how far would the car travel in 90 minutes ?

Answer 1

`\displaystyle 1(1)/(2)\:mph`

Explanation:

`\displaystyle 1(1)/(2)\:hr. = 90\:min.`

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Answer 2

(1.5)x

Explanation:

90 minutes = 1.5 hours therefore

if car travels x miles in 1 hour

then the care has to travel (1.5)x miles in 90 minutes