Mari has a part time job. She earns $7 an hour. She makes at most $143.50 per week. What is the greatest number of hours she works?

Mathematics · High School · Mon Jan 18 2021

Answered on

Given :

Money earned by Mari per hour = $7

Money earned by Mari in 1 week = $143.50

Let the number of hours worked be x

Then, according to question 

7x = 143.50

x = 143.50/7

= 20.5

 

So, the greatest number of hours Mari worked is 20 hours 30 minutes.