Thelma and Laura start a lawn-mowing business and buy a lawnmower for $225. They plan...

Callum Dudley

Callum Dudley

Answered

2022-07-06

Thelma and Laura start a lawn-mowing business and buy a lawnmower for $225. They plan to charge $15 to mow one lawn. What is the minimum number of lawns they need to mow if they wish to earn a profit of at least $750?

Answer & Explanation

Keely Fernandez

Keely Fernandez

Expert

2022-07-07Added 14 answers

Step 1
The profit will be given as:
P = $ 15 x - $ 225
(where we subtracted the cost of the mower) so that P = $ 750
x will be the required number of needed lawns.
We need to solve:
$ 750 = $ 15 x - $ 225
rearranging:
x = $ 750 + $ 225 $ 15 = 65

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