Answer:
29 minutes
Step-by-step explanation:
Cost of trampoline = fixed entrance fee + cost per minute
The fixed entrance fee is $7.
The cost per minute is $1.25
Let t be the number of minutes he is on the trampoline.
For 1 minute, he pays $1.25 * 1.
For 2 minutes, he pays $1.25 * 2.
For t minutes, he pays $1.25 * t.
The cost for t minutes is 1.25t.
The total cost is the fixed cost plus the cost per minute.
Total cost = 7 + 1.25t
He was on the trampoline and paid $43.25. His total cost was $43.25.
That means that 7 + 1.25t = 43.25.
The equation is
7 + 1.25t = 43.25
Now we solve the equation for t.
Subtract 7 from both sides.
1.25t = 36.25
Divide both sides by 1.25
t = 29
Answer: He was on the trampoline 29 minutes.
