Question

30 miles/hour = how many miles per half hour?

Answer 1

30 miles per hour means moves 30 miles in time 1 hour

Distance = 30 mi. and time = 1 hr

So we need to find how many miles in a half-hour

Then the distance will be half the given distance

$\frac{30}{1}=\frac{d}{\frac{1}{2}}$

By using cross multiplication

30 * 1/2 = 1 * d

d = 15 miles

The distance = 15 miles