Question

Jerome takes a math course and a science course for summer school, for every 5 hours Jerome spends studying math he studies science for 4 hours. if Jerome spent a total of 63 hours studying last week, then how long did he study math?

Answer 1

He spent 42 hours studying math

Answer 2

35 hours

Explanation:

Math: 5

Science: 4

Total: 9

Set up a proportion math to total

`(5)/(9)` =
`(x)/(63)`

9 x 7 = 63

5 x 7 = 35