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Kevin rented a truck for one day. There was a base fee of $16.95, and there was an additional charge of 94 cents for each mile driven. Kevin had to pay$296.13 when he returned the truck. For how many miles did he drive the truck?

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Answer:

He did drive the truck for 297 miles.

Explanation:

The cost of driving x miles is modeled by a linear function in the following format:

C(x) = ax + b

In which a is the cost per mile and b is the flat cost.

There was a base fee of $16.95, and there was an additional charge of 94 cents for each mile driven.

This means that b = 16.95, a = 0.94. So

C(x) = 0.94x + 16.95

Kevin had to pay $296.13 when he returned the truck. For how many miles did he drive the truck?

We have to find x for which C(x) = 296.13. So

C(x) = 0.94x + 16.95

296.13 = 0.94x + 16.95

0.94x = 296.13 - 16.95

0.94x = 279.18

x = 279.18/0.94

x = 297

He did drive the truck for 297 miles.

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