Rae earns $60 for playing music on Saturday nights at the local coffee house. She makes an average of $5.25 in tips per hour. Wr ite the function of Rae's earnings, and solve for how much she would make after 4 hours.
2 answers:
let total earnings = x
and number of hours = y
so x=60+5.25y is the formula
so for 4 hours replace y with 4
x = 60+5.25(4)
x = 81, so for 4 hours she made $81
Let y = hours equation: 5.25y + 60 To find out how much she would make after 4 hours, insert 4 in place of y: 5.25 x 4 + 60 21 + 60 81 After 4 hours, Rae earns $81.
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