Job A pays Edith $4 an hour. Job B pays her $8 an hour. She will work both jobs. She is able to work no more than 15 hours a week. She wants to earn at least $80 a week, working a combination of both jobs.

Question

Write a system of inequalities that can use used to represent the situation.

Answer 1

number of hrs at job A -- x
number of hrs at job B -- y

x+y ≤ 15

4x + 8u ≥ 80 or x + 2y ≥ 20