A Party mix is made from

Question

A Party mix is made from pretzels that cost $2 a pound and cereal that cost $2.40 a pound. If a total of 4 pounds is made and the cost for the mix is $2.15 a pound, how many pounds of each ingredient are used?

Answer 1

2p + 2.4c = 2.15(4)

2p + 2.4(4-p) = 8.6

-.4p = 8.6 - 9.6 = - 1

p = 2 1/2 lbs pretzels

c = 1 1/2 cereal