algebra
posted by jill on .
A video store charges a monthly fee of 7.50, but the charge to rent each movie is only 1.00 per movie. Another store has no membership fee, but it costs 2.50 to rent each movie. How many movies need to be rented each month for the total fees to be the same from either company?

plan1 = 7.5 + 1m, where m is the number of movies rented
plan2 = 2.5m
when is 2.5m = m + 7.5 ?
1.5m = 7.5
m = 7.5/1.5 = 5
at 5 movies rented the cost would be the same.