Question

How many miles will be completed by a runner with a constant speed of 5 mph in 30 minutes?

Answer 1

distance=speed times time
speed=5mph=5
`(mi)/(hr)`
time=30mins=30/60hr=1/2hr

so
distance=speed times time

`distance=(5(mi)/(hr))((1)/(2)hr)`

`distance=(5mi \space\ hr)/(2hr)`

`distance=2.5mi`

he will run 2.5 miles in 30 mins at the speed of 5mph