SOLUTION:
Peanuts sells for $3 a pound. Cashews sell for $6 a pound. How many pounds of cashews should be mixed with 12 pounds of peanuts to obtain a mixture selling for $4.20 a pound?
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Question 705785:
Peanuts sells for $3 a pound. Cashews sell for $6 a pound. How many pounds of cashews should be mixed with 12 pounds of peanuts to obtain a mixture selling for $4.20 a pound?
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
3*12+6X=4.20(X+12)
36+6X=4.20X+50.40
6X-4.20X=50.40-36
1.8X=14.40
X=14.40/1.8
X=8 POUNDS OF CASHEWS IS USED.
3*12+6*8=4.20(8+12)
36+48=4.20*20
84=84
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