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

$2h=\ 9$
$1h=\ 4.5$
then we have to divide $31.5$  by  $4.5$
$31.5/4.5=\frac{31.5}{4.5}=7$
it means Donovan babysit children of this family for 7 hours 

Answer 2

Answer:

Donovan babysat for 7 hours.

Step-by-step explanation

Numerator = Money Earned  Denominator= Hours Worked

$\frac{9}{2}$ = $\frac{31.50}{x}$  31.50 x 2= 63  63/9 = 7