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A race car driver won a 400 mile race with a speed of 103.2 miles per hour. Find the driver's time.

Solution

A race car driver won a 400 mile race with a speed of 103.2 miles per hour. Find the driver's time.

Solution

time : 3.87596 \dots

Solution steps

Translate the problem into an equation:

400 = 103.2 x

Solve for

x, 400 = 103.2 x : x = \frac{500}{129}

Simplify

time : 3.87596 \dots

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