question is in description because its too long

Question

The concession stand at a theater sells bags of popcorn and boxes of candy. Kris bought 3 bags of popcorn and 2 boxes of candy and spent $21.25. Riley bought 2 bags of popcorn and 5 boxes of candy and spent $27. How much is a box of candy?

Answer 1

3p + 2c = 21.25

2p + 5c = 27.00

Multiply the first equation by 2 and the second by -3:

6p + 4c = 42.50

-6p - 15c = -81.00

Add the equations and solve for c.