Question

Oceanside bike rental charges 11 dollars plus 8 hours for renting. Tom paid 51 dollars to rent a bike . How many hrs did he pay to have the bike checked out

Answer 1

Tom paid $51 renting the bike for 5 hours

Explanation:

Given:

Oceanside bike rental charges $11 plus $8 per hour for renting.

Tom paid $51 to rent a bike.

To find the number of hours Tom rented the bike for.

Solution:

Let Tom rent the bike for =
`x` hours.

Hourly rate of renting = $8 per hour

Using unitary method find cost of renting for
`x` hours.

If renting for 1 hour costs = $8

Then for
`x` hours, the cost in dollars will be =
`8x`

Fixed charges = $11

∴ Total cost of renting a bike in dollars for
`x` hours will be given as:

`8x+11`

Tom paid a total charge of = $51.

So, we have:

`8x+11=51`

Subtracting both sides by 11.

`8x+11-11=51-11`

`8x=40`

Dividing both sides by 8.

`(8x)/(8)=(40)/(8)`

∴
`x=5`

Thus, Tom rents the bike for 5 hours.