Alexis is working at her schools bake sale. Each mini cherry pie sells for $4 and each mini peach pi

Alexis is working at her schools bake sale. Each mini cherry pie sells for $4 and each mini peach pie sells for $3. Alexis sells 25 pies and collects $84. How many pies of each kind does she sell?


Let each cherry pie be c and each peach pie be p. We have the following equations:

1. c + p = 25
2. 4c + 3p = 84

You can solve this system of equations 3 ways.
Substitution Rule
Elimination Rule
Cramers Rule

No matter which way you choose, you get c = 9 and p = 16.