Answer: the maximum number of rides he can take at the Fair is 7.
Step-by-step explanation:
Let x represent the number of rides that he wants to take at the Fair.
His admission to the park costs $15.50 and each ride cost $5. This means that the cost of x rides would be expressed as
15.5 + 5x
He anticipates the cost of food at the Fair will be $25. This means that the expression for the total amount that he would spend is
15.5 + 5x + 25
If Robbie was given $80 to spend at the Fair, it means that
15.5 + 5x + 25 = 80
5x + 40.5 = 80
5x = 80 - 40.5 =
5x = 39.5
x = 39.5/5
x = 7.9
Since the number of rides cannot be a fraction, then the maximum number of rides he can take at the Fair is 7
