Question

Mai earns $7 per hour mowing her neighbors' lawns. She also earned

$14 for hauling away bags of recyclables for some neighbors. Priya
babysits her neighbor's children. She earns $8.40 per hour. Priya and
Mai have agreed to go to the movies the weekend after they have
earned the same amount of money for the same number of hours. How
many hours do they have to work before they can go to the movies?
How much will they have earned?

Answer 1

Give me a second to answer this brb

Answer 2

10 hours, $84

Explanation:

System of equations is:

7x+14=y

8.4x=y

Substitute to get:

7x+14=8.4x

subtract 7x from both sides

14=1.4x

x=10

So they will have to have worked for 10 hours

8.4*10=y

84=y

So they will have earned 84 dollars each

x=10 y=84