Madison worked for 7.5 hours before school and 15 hours after school
Solution:
Given that, Madison works a job before and after school
Amount earned before school = $ 11.50 per hour
Amount earned after school = $ 11.75 per hour
Amount earned last week = $ 262.50
Let "x" be the hours worked before school
Given that, she worked twice as many hours after school
So, number of hours worked after school = 2x
Therefore, we can say,
Total amount earned = (Amount earned before school)(number of hours) + (Amount earned after school)(number of hours)

Number of hours worked after school = 2x = 2(7.5) = 15
Thus Madison worked for 7.5 hours before school and 15 hours after school