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?

1 Answer
Jul 20, 2017

Answer:

I got #65#

Explanation:

The profit will be given as:

#P=$15x-$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=$15x-$225#

rearranging:

#x=($750+$225)/($15)=65# lawns