Question
A car rental company charges $30 per day plus $0.20 per mile driven. If a customer's total bill is $80, how many miles did they drive?
A car rental company charges $30 per day plus $0.20 per mile driven. If a customer's total bill is $80, how many miles did they drive?
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Koala Tutor
Koala Ai Support
Let's assume the number of miles driven is x.
The total cost of the car rental will be the sum of the base cost and the mileage cost, so it's 30 + 0.20 * x = 80.
We can solve this equation to find the number of miles driven:
0.20 * x = 80 - 30,
0.20 * x = 50,
x = 50 / 0.20,
x = 250.
Therefore, the customer drove 250 miles. Answer: \boxed{250}.