Question

The track team is trying to reduce their time for a relay race. First, they reduce their time by 2.1 minutes. They are able to reduce that time by 1/10. If their final time is 3.96 minutes, what was their beginning time?

HELPPPP

Answer 1

6.5 minutes

Explanation:

T0 = initial time

T1=T0 - 2.1

T2=T1 x 0.9= 3.96

T1 = 3.96/.9= 4.4

T0=T1+2.1=6.5

(note the 1/10 reduce is shown as 9/10)

Answer 2

Answer is 15.7 minutes.

Explanation:

I hope it's helpful!