Question

Maria brought $50 to spend on rides at the

carnival. The rides cost $4 each. How
many rides, r, has Maria paid for if she has
only $6 left of her original $50?

Answer 1

She has paid for 11 rides.

She started with 50 dollars and at the end she has 6 dollars left. Each ride costs 4 dollars. The follow equation could be created:

$6 = $50 - $4r

Six dollars remaining = original fifty dollars - four dollars per ride.

The number of rides is represented by the variable r.

To solve:

$6 = $50 - $4r
Subtract 50 from both sides

-$44 = -$4r.
Divide each side by -4 to get the number of rides (r)

11 = r

Therefore, she has paid for 11 rides.