Jillian spent $31 to park for 6 hours. The parking garage charges a base rate of $3 for the first two 2 hours, and then an hourly rate for each additional hour. How much does each additional hour of parking cost?
Jillian paid $3 for the first 2 hours, so she paid $31 - $3 = $<<31-3=28>>28 for the additional 4 hours.
Each additional hour of parking costs $28 / 4 = $<<28/4=7>>7. Answer: \boxed{7}.
To find out how much each additional hour of parking costs, we first need to determine the cost of parking for the first 2 hours.
Given that Jillian spent $31 to park for 6 hours, we know that the first 2 hours have a fixed cost of $3 each, so it costs a total of $3 x 2 = $6.
Now, we need to subtract this cost from the total to find out the cost of the additional 4 hours.
The cost of the additional 4 hours is $31 - $6 = $25.
Since Jillian parked for 6 hours in total, and the first 2 hours had a fixed cost, we have 6 - 2 = 4 additional hours.
To find the cost of each additional hour of parking, we divide the total cost of the additional hours by the number of additional hours:
$25 / 4 = $6.25.
Therefore, each additional hour of parking costs $6.25.
To find out how much each additional hour of parking costs, we need to first find the cost for the first two hours and then subtract it from the total cost.
The base rate for the first 2 hours is $3. So, Jillian has already paid $3 for the first 2 hours.
To determine the cost for the additional hours, we subtract the base rate from the total amount paid: $31 - $3 = $28.
Since Jillian parked for 6 hours and the first 2 hours are accounted for, she parked for an additional 4 hours.
To find out how much each additional hour costs, we divide the remaining amount by the number of additional hours: $28 รท 4 = $7.
Therefore, each additional hour of parking costs $7.