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?

Question

Keely Fernandez · Accepted Answer

Step 1The 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