Final answer:
Jennifer can ride 6 rides.
Step-by-step explanation:
To find the number of rides Jennifer can ride, we need to solve the equation 10 + 1.25r = 17.50 for r.
Step 1: Subtract 10 from both sides of the equation:
1.25r = 17.50 - 10
Step 2: Simplify the right side of the equation:
1.25r = 7.50
Step 3: Divide both sides of the equation by 1.25:
r = 7.50 / 1.25
Step 4: Calculate the division:
r = 6
Therefore, Jennifer can ride 6 rides.