A skateboarder traveled 3 5 of a mile in 1 20 of an hour. What was the skateboarder’s speed in miles per hour?

Question

I do not understand this very clearly at all.

Answer 1

Hi. The way to solve this problem is, first, to convert from fractions to decimals for the distance and from fraction of an hour to minutes and then to convert that result to miles per hour.

3/5 of a mile = 0.6 miles (3/5 = 0.6)

1/20 of an hour = 3 minutes (60/20 = 3)

So the skateboarder can move 0.6 miles in 3 minutes. We know that, in every hour (60 minutes), there are 20 3-minute segments. So, in every hour, this skateboarder can move 20 x 0.6 miles = 12 miles.

The skateboarder's speed is 12 mph.