Question

HELP PLS I NEED TO TURN IT IN MONDAY!

Answer 1

Terri can swim 3 laps in 2.5 minutes. To find how long it takes to swim 20 laps, you can make a proportion.

`(Lap)/(Time)`

Put the amount of laps on the top and the time(minutes) at the bottom.

`(3)/(2.5) = (20)/(x)`

Cross multiply:

`20 * 2.5 = 50`

Divide by 3:

`50 / 3 = 16 (2)/(3) \rightarrow 16.67`

It would take Terri
`16 (2)/(3)` OR
`16.67` minutes to run 20 laps.