Question

Anna took a taxi from her house to the airport. the taxi company charged a pick-up fee of $3 plus $2.25 per mile. the total fare was $48, not including the tip. how many miles was the taxi ride?

Answer 1

20

Explanation:

The total fare, f, is:

f = 2.25x + 3

We want to solve for x. the number of miles. This is fairly simple if we know f.

48 = 2.25x + 3
48 - 3 = 2.25x + 3 - 3
45 = 2.25x
45/2.25 = 2.25x/2.25
20 = x