You can earn $20 per lawn mowing lawns or you can earn $7 per hour washing cars. Which part time job will help you earn more money? .

Question

Write an algebraic expression to represent the money you earn for each job

How can you use the algebraic expressions you wrote to compare the earnings of the two jobs?

Suppose you could mow 2 lawns per week. In which job would you earn more money?

Answer 1

Thank you for posting your question!

For lawn mowing the algebraic expression would be 20L and for car washing it would be 7H, where L is the number of lawns mowed and H is the number of hours spent washing cars

In terms of which is more profitable it just depends on how long it takes you to mow a lawn and how many hours that you are willing to work in a particular week.

So say you mow 2 lawns per week, that would be 2 x $20 = $40 in earnings.

That means that if you were able to devote more than 40 / $7 = 5.71 hours per week to washing cars that you could earn more washing cars.

I hope that helps! Feel free to reach out via message for a lesson if you have any additional questions beyond that! :)