Final answer:
The correct inequality for the scenario is 0.80m + 5 ≤ 15. Upon solving for m, we find that the maximum number of rides is 12.5, which we round down to the whole number, 12.
Step-by-step explanation:
To determine the number of rides you can go on at the amusement park with $15, while accounting for a $5 admission fee, we can write an inequality. Let m represent the number of rides. Each ride costs $0.80, so the total cost for m rides would be $0.80m. Adding the admission fee, the inequality that describes the situation is:
0.80m + 5 ≤ 15
This inequality means that the cost of m rides plus the admission fee must be less than or equal to $15.
To find the maximum number of rides, we can solve for m in the equation:
m = (15 - 5) / 0.80
Calculating this gives us:
m = 10 / 0.80 = 12.5
Since you can't go on half a ride, the maximum whole number of rides is 12.
So, the correct option is:
(a) (0.80m + 5 ≤ 15); Maximum number of rides: (m = {15 - 5}/{0.80})