Question

A bike rental company charges $10 plus a charge per for the distance ridden. the total cost, t, can be represented by the equation t=10+cm , where c is the additional cost per mile and m is the number of miles ridden. solve the equation for c.

Answer 1

`c=(t-10)/(m)`

Explanation:

`t=10+cm`

Subtract 10 from both sides:

`t-10=cm`

Divide both sides by
`m`:

`(t-10)/(m)=c`

Placing
`c` on the left:

`c=(t-10)/(m)`

For example, if the total charge is $27.50 and the distance ridden is 250 mi, we can calculate the additional cost per mile, as such:

`c=(27.50-10)/(250)`

`c=0.07`