SOLUTION: A rental car agency charges $15 per day plus 11 cents per mile to rent a certain car. Another agency charges $21 per day plus 5 cents per mile to rent the same car. How many miles

Question 471616: A rental car agency charges $15 per day plus 11 cents per mile to rent a certain car. Another agency charges $21 per day plus 5 cents per mile to rent the same car. How many miles will have to be driven in one day for the cost of a car from the first agency to equal the cost of a car from the second agency in one day? (Express the problem as a system of linear equations and solve by any method).
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
15+.11n=21+.05n
1500+11n=2100+5n
6n=600
n=100
After 100 miles, the second agency becomes cheaper..
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