SOLUTION: Use a system of equation to model each situation .suppose you starting a cleaning service .you have spent $315 on equipment .to clean ahouse you use $4 worth of supplies.you charge

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Use a system of equation to model each situation .suppose you starting a cleaning service .you have spent $315 on equipment .to clean ahouse you use $4 worth of supplies.you charge      Log On


   



Question 1067115: Use a system of equation to model each situation .suppose you starting a cleaning service .you have spent $315 on equipment .to clean ahouse you use $4 worth of supplies.you charge a one time fee of $50 plus $20 per cleaning.how many times would have to clean ahouse in order to make a profit?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +n+ = number of houses cleaned
If I'm reading this right,
+%28+4+%2B+20+%29%2An+%2B+50+%3C=+315+
+24n+%2B+50+%3C=+315+
+24n+%3C=+265+
+n+%3C=+11+
So, they would make a profit after
cleaning 12 houses