Question

The classes at the middle school want to raise money. The sixth grade runs a bake sale for 55 hours and makes $170. The seventh grade sets up a dunking booth for 4 hours and makes $112. The eighth grade has a car wash and makes $192 in 6 hours. Which class has the highest rate for raising money?

Answer 1

Sixth grade/ 170÷55=$3.10
Seventh grade/112÷4=$28
Eight grade/192÷6=$32
Therefore 8th grade has the highest rate for making money.You divide the money earned by the number of hours worked.

Answer 2

The 8th grade does. All you do is divide each number by the amount of hours worked. So 6th grade 170/55 7th 112/4 and 8th 192/6
In the end its 6th= 3 dollars an hour 7th= 28 dolars an hour and 8th gets 32dollars an hour so they have the highest rate