How to write an equation for this problem: A boat rental company charges a $5 usage fee and $10 an hour to rent a canoe. How long did you rent the canoe if you were charged $45?

10x+5=45

If you are using the formula:10x+5=45 then the answer would be:10x+5=45

10x=45-5
10x=40
divide by 10 both sides 2 get x alone
therefore x=4 meaning that u rented the canoe for 4hrs

To write an equation for this problem, we need to determine the unknown quantity, which is the time you spent renting the canoe. Let's assume the time in hours as "x."

We know that the boat rental company charges a $5 usage fee, regardless of the rental duration. Additionally, there is a charge of $10 per hour for renting the canoe.

So, the equation to represent the total charge of $45, including the usage fee and the rental cost, can be written as:

5 + 10x = 45

Here, "5" represents the usage fee, and "10x" represents the rental cost for x number of hours. The sum of these two amounts should equal the total charge of $45.

To determine how long you rented the canoe, we can solve this equation for x.

5 + 10x = 45

First, subtract 5 from both sides of the equation:

10x = 45 - 5

Simplifying:

10x = 40

Next, we divide both sides of the equation by 10 to isolate x:

x = 40/10

Simplifying:

x = 4

Therefore, you rented the canoe for 4 hours.