Question

Kylie is on a swing. The swing moves back and forth every five seconds. About how many minutes will it take Kylie to go back and forth one hundred times?

Answer 1

You would divide 5 seconds by 60 seconds since there is 60 seconds in a minute and get 12. Then you would times 12 by 100 and get 1200. Kylie swung 12 times a minute. Then you would divide by 60 to get the swings in minutes. So it would take 20 minutes.

60/5 = 12
12 x 100 = 1200
1200/60 = 20