Question

A cab company charges $3 per cab ride, plus an additional $1 per mile driven. If a cab ride is 61 miles long, how much will it cost?

Answer 1

If the fixed cost of the ride is $3 and the variable cost is $1 per mile driven, we can write the following equation to relate the total cost (y) and the number of miles driven (x):

`y=3+1x`

If the number of miles is 61, we can use x = 61, so the total cost will be:

`\begin{gathered} y=3+1\cdot61 \\ y=64 \end{gathered}`

So the final cost will be $64.