One jet ski company charges a flat flee of $20 plus $2 per hour A Second charges $14.75 plus $3.75 per hour. At how many hours will the prices same

1 Answer | Add Yours

embizze's profile pic

embizze | High School Teacher | (Level 1) Educator Emeritus

Posted on

If x is the number of hours then the charge for the first company is

`C=20+2x`

The charge for the second company is:

`C=14.75+3.75x`

To find when the charges are the same we can set the expressions for the charge equal to each other and solve for x:

`20+2x=14.75+3.75x`

`1.75x=5.25`

`x=5.25/1.75=3`

So the charges are the same after 3 hours.

We could also graph the equations and find the intercept:

We’ve answered 333,937 questions. We can answer yours, too.

Ask a question