I don’t understand how to do this

Question

A rental car agency charges $190 per week plus $0.15 per mile to rent a car. How many miles can you travel in one week for $310?

Answer 1

Let's use the variable x to represent the number of miles you can travel in one week.

Then we can write the following equation using the information provided in the problem:

0.15 x + $190 = $310

Now we can solve for x using inverse operations:

0.15 x + 190 = 310

0.15 x + 190 - 190 = 310 - 190

0.15 x = 120

0.15 x / 0.15 = 120/0.15

x = 800 miles

You could drive 800 miles and it will cost $310