Question

Helen spent $7.75 to purchase 23 snack-sized bags of chips c and pretzels p for a club meeting. The following system represents this solution.

{c+p=23
{0.25c+0.5p=7.75
How many of each type of snack did Helen buy?

Answer 1

pretzels = 8

chips = 15

Explanation:

{ c + p = 23

{ 1/4c + 1/2p = 7.75

Both sides * 4

c + 2p = 31

- c + p = 23

p = 31 - 23 = 8

pretzels = 8

chips = 15