Gumballs sell for $5/lb and Peppermint Patty's sell for $8/lb. The grocer wants to make a 20 lb mixture that will sell for $6.20/lb. How many pounds of each candy should he use?

Question

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Answer 1

5(x) + 8(20-x) = 6.2(20)

5x-8x = 124 -160

3x = 36

x = 12 pounds of $5

20-x = 8 pounds of $8

to get 20 pounds of $6.20 mix

5(12) + 8(8) = 60+64= 124 = 6.2(20) = 124