Question

2. Mary has saved $160 of the $250 she needs for rent.

She takes home $6 an hour from her part-time job.
Mary works the same number of hours each day for 3
days. How many hours does Mary have to work each
day to take home enough money to pay the balance
of her rent?
F. 3 hours
G.
4 hours
H.
5 hours
J.
6 hours
K
7 hours

Answer 1

H - 5 hours

Explanation:

We can setup an equation to solve the question.

Let
`h` be the number of hours Mary must work.

`250 = 160 + 3(6h)`

250 - the amount of money Mary needs

160 - the amount of money Mary has saved already

3 - How many days she works

6h - How much she gets paid per day

`250 = 160 + 3(6h)\\90 = 3(6h)\\90=18h\\5=h`

This means Mary must work 5 hours each day to pay her rent.