Question

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.

Jason plans to attend the Clark County Fair and is trying to decide what would be a better deal. He can pay $40 for unlimited rides, or he can pay $13 for admission plus $3 per ride. If Jason goes on a certain number of rides, the two options wind up costing him the same amount. What is that cost? How many rides is that?

Answer 1

for x rides, you want
40 = 13 + 3x
Now just solve for x

Answer 2

$40 = $13 + $3r

Subtract 13 from both sides, then divide them by 3 to find how many rides. The same amount = $40.