Question

Four girls (Barbara, Donna, Cindy, and Nicole) ran in a relay race as a team. Each girl ran one part of the race. The team's total time was 11 & 3/5 minutes. What was Cindy's time? (IM GIVING 40 POINTS!!!!)

Barbaras time: 3 & 3/10


Donna's time:2 & 4/5


Cindy's time: Find out


Nicole's time: 2 & 1/10

Answer 1

Explanation:

The expression for the team time is:

`11(3)/(5) =3(3)/(10) +2(4)/(5) +2(1)/(10) +X\\`

Where X= Cindy's Time

Isolating X from the equation:

`X=11(3)/(5)-(3(3)/(10) +2(4)/(5)+2(1)/(10))\\\\ X=11(3)/(5)-(8(1)/(5))\\ \\ X=3(2)/(5)`

Cindy's time was
`3(2)/(5)` minutes.