Question

A bicycle is traveling at 15 miles per hour. How many feet will it cover in 100 seconds?.

Answer 1

2200 ft

Step-by-step explanation:

This is a dimensional analysis question.

First, convert 15 miles to feet.

`15 mi((5,280ft)/(1mi))=79200ft`

Then, convert hours to seconds.

`1 hr((3600s)/(1hr))=3600s`

Then, use those values to rewrite
`(m)/(hr)` as
`(ft)/(s)`

`(79200ft)/(3600s)=22(ft)/(s)`

Finally, multiply
`(ft)/(s)` by the target time in seconds

`22(ft)/(s)(100s)=2200ft`