SOLUTION: I know the answer is that Mr. Fell parked for 4 hours, just not sure how to set up the equation/pattern rule. It costs $1.50 for the first hour and $0.50 for each additional hal

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Question 1035126: I know the answer is that Mr. Fell parked for 4 hours, just not sure how to set up the equation/pattern rule.
It costs $1.50 for the first hour and $0.50 for each additional half hour to park in a parking lot. Mr. Fell paid $4.50. Write an equation to represent the situation.
Would it be:
n + 1.5 = 4.50
-1.5 -1.5
n = 3
Thanks in advance!
Found 2 solutions by Amrata1, MathTherapy:
Answer by Amrata1(11)   (Show Source): You can put this solution on YOUR website!
Let total no. Of additional half hours be H.
Then total parking cost will be H *0.50 + 1.5 which is equal to 4.5
Hence, H * 0.5 = 4.5 - 1.5 = 3
Therefore, H = 3/0.5 = 6
Now 2 half hours make 1 hour.
Therefore 6 additional half hours will make 3 additional hours.
Hence, total no. Of hours = 3 + 1 = 4.
Answer by MathTherapy(10551)   (Show Source): You can put this solution on YOUR website!
I know the answer is that Mr. Fell parked for 4 hours, just not sure how to set up the equation/pattern rule.
It costs $1.50 for the first hour and $0.50 for each additional half hour to park in a parking lot. Mr. Fell paid $4.50. Write an equation to represent the situation.
Would it be:
n + 1.5 = 4.50
-1.5 -1.5
n = 3
Thanks in advance!
With P(x) being amount paid, and x: total hours parked, the piece-wise function is: 



Since an amount that was > $1.50 ($4.50) was paid, then we use the equation: 

4.5 = x + .5 -------- Substituting $4.50 for P(x)

4.5 - .5 = x

x, or time he parked:  

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