Question

A student tries out for the track team and runs a lap in 45 seconds. The coach tells her she will have to cut her time by 50% to make the team. How fast she run a lap to make the team?

9 seconds
22 1/2 seconds
25 seconds
44 1/2

Answer 1

22
`(1)/(2)` seconds

Explanation:

A students runs a rap in 45 seconds

The coach tells her that she will have to cut her time by 50% to make the team.

50% of 45 seconds is;

`(50)/(100)` × 45 seconds = 22
`(1)/(2)` seconds

She will have to run 50 seconds - 22
`(1)/(2)` seconds = 22
`(1)/(2)` seconds to make the team