362,287 views
15 votes
15 votes
joey dropped his phone and his screen cracked. His parents are making him pay for its repair. The cost of the repair is at least $150. In order to cover this bill, Joey has started babysitting for $10 per hour and working part-time at Trader Joe's for $15 per hour. He can work at most 20 hours a week. How many hours could he work at each job to earn the money he needs in the time he has?

User QuinRiva
by
2.8k points

2 Answers

19 votes
19 votes

Answer:

6 hours each job

Explanation:

Let's break this down:

Given information-

Need 150 dollars

10 per hour job

15 per hour job

Can only work 20 hours a week

Set this up with an equation:

150=15x+10x

The x stands for the fact that the hours are unknown

To solve for x, do 15+10

150=25x

x=5

So, plug the 6 back in

15(6)=90

10(6)=60

This does equal 150. Joey needs to work 6 hours at each job(which is less than 20!) to earn 150 dollars.

User Beyondo
by
3.1k points
20 votes
20 votes

Answer:

1

Explanation:

User Chris Brendel
by
3.1k points