Oceanside bike rental shop charges 14 dollars plus 9 dollars an hour for renting a bike. Joan paid 86 dollars to rent a bike. How many hours did she pay to have the bike checked out?
9h + 14 = 86
solve for h
h=7
Let's assume x represents the number of hours Joan rented the bike.
The bike rental shop charges an additional 9 dollars for each hour, so the cost of renting the bike for x hours is 9x dollars.
The total cost Joan paid to rent the bike is 86 dollars, which includes the initial charge of 14 dollars plus the cost of the rented hours.
So we can set up an equation: 14 + 9x = 86.
To solve for x, we can subtract 14 from both sides of the equation: 9x = 86 - 14.
Simplifying further, we get: 9x = 72.
Finally, we divide both sides of the equation by 9 to solve for x: x = 72 / 9.
Therefore, Joan paid for 8 hours to have the bike checked out.
To determine the number of hours Joan paid to have the bike checked out, we can first subtract the fixed charge of $14 from the total amount she paid.
Let's denote the number of hours as "h".
The equation representing Joan's payment can be expressed as:
14 + 9h = 86
To find the value of "h", we can solve this equation.
First, subtract 14 from both sides of the equation to isolate the term 9h:
9h = 86 - 14
9h = 72
Next, divide both sides of the equation by 9 to solve for "h":
h = 72 / 9
h = 8
Therefore, Joan paid to have the bike checked out for 8 hours.