Answer:
60 miles per hour
Explanation:
You want the unit rate associated with driving 240 miles in 4 hours.
Unit rate
A unit rate is a rate with 1 unit in the denominator. It can be found by dividing the dependent value by the independent value:
(240 miles)/(4 hours) = 60 miles/hour
The unit rate is 60 miles per hour.
__
Additional comment
When time is involved, we usually want the unit rate expressed per unit time. That is why we divided by hours.
The unit rate could also be expressed using 1 mile as the unit:
(4 hour)/(240 miles) = (1/60) hours/mile = 1 minute per mile
This would allow you to calculate the time required to go some number of miles. For some problems, this might be the unit rate that would be useful.
<95141404393>