Video Transcript
David and Benjamin drove 94 miles
to Westchester. If it took them 1.8 hours to get
there, determine, to the nearest integer, the average speed at which they were
driving. Give your answer in miles per
hour.
In this question, we’re asked to
calculate the average speed of the entire journey. We know that we can calculate this
by dividing the total distance by the total time. The total distance traveled by
David and Benjamin was 94 miles. We are told that it took them 1.8
hours to get to their destination. So the total time is 1.8 hours. The average speed in miles per hour
is therefore equal to 94 divided by 1.8. Typing this into our calculator
gives us 52.2 recurring.
We are asked to give our answer to
the nearest integer. And since the first digit after the
decimal point is a two, we round down. The average speed at which David
and Benjamin were driving to the nearest integer is 52 miles per hour.
