Question

At a​ little-known vacation​ spot, taxi fares are a bargain. A 18​-mile taxi ride takes 21 minutes and costs ​$12.60. You want to find the cost of a 39​- mile taxi ride. What unit price do you​ need?

Answer 1

Given :

A 18​-mile taxi ride takes 21 minutes and costs ​$12.60.

To Find :

The cost of a 39​- mile taxi ride. What unit price do you​ need.

Solution :

Unit price per mile :

$p=\dfrac{12.60}{18}\\\\p = \ 0.7\ /mile$

Cost of 39 mile taxi ride :

$C = 39\times p\\\\C=39\times 0.7\\\\C=\ 27.3$

Therefore, unit price is $27.3 and unit price is $0.7 / mile .

Hence, this is the required solution.