Question

A truck rental is $25 plus $.35/mi. Find out how many miles Ken traveled if his bill was $51.95.

Answer 1

So,

We could write the following equation, where "x" is the number of miles travelled.

`0.35x+25=51.95`

If we solve this equation, the first thing we're going to do is to let all "x terms" in a side of the equation and all the numbers in the other side. If "25" is summing in a side, it will change its sign when we pass it to the other side. Like this:

`0.35x=51.95-25`

Now, we substract the numbers above and get:

`0.35x=26.95`

Now, if 0.35 is multiplying "x", we are going to pass this number to divide the amount in the other side:

`x=(26.95)/(0.35)=77`

Therefore, Ken travelled 77 miles.