Marlee makes 5 dollars an hour working after school and 6 dollars an hour working on saturdays. last week she made 64.50 dollars after 12 hours of work. how many hours did she work on saturday?

on Saturday, she worked for 4.5 hours

Step-by-step explanation:

Let x represent the number of hours that she worked after school.

Let y represent the number of hours that she worked on Saturday.

Last week, she worked for a total of 12 hours. This means that

x + y = 12

Marlee makes 5 dollars an hour working after school and 6 dollars an hour working on Saturdays. Last week she made 64.50 dollars after 12 hours of work. This means that

5x + 6y = 64.5 - - - - - - - - - -1

Substituting x = 12 - y into equation 1, it becomes

5(12 - y) + 6y = 64.5

60 - 5y + 6y = 64.5

- 5y + 6y = 64.5 - 60

y = 4.5 hours

$79500

step-by-step explanation: