Question

On Tuesday, Donovan earned $9 for 2 hours of babysitting. On Saturday, he babysat for the same family and earned $31.50. How many hours did he babysit on Saturday?

Answer 1

Donovan babysat for 7 hours.

Explanation

Numerator = Money Earned Denominator= Hours Worked

`(9)/(2)` =
`(31.50)/(x)` 31.50 x 2= 63 63/9 = 7

Answer 2

`2h=\$9`

`1h=\$4.5`
then we have to divide
`31.5` by
`4.5`

`31.5/4.5=(31.5)/(4.5)=7`
it means Donovan babysit children of this family for 7 hours