SOLUTION: A grocer combines coffee that costs $8.00 per pound with coffee that costs $3.00 per pound. how many pounds of each should be used to make 80 lbs of a blend that costs $5.00 per po
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Question 179076: A grocer combines coffee that costs $8.00 per pound with coffee that costs $3.00 per pound. how many pounds of each should be used to make 80 lbs of a blend that costs $5.00 per pound? i am suppose to have an equation for this also
thank you soo much for helping me out!!
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
let x and y be the amount of $8 per pound coffee and $3 per pound coffee respectively
:
x+y=80...........eq 1
8x+3y=5(80)......eq 2
:
rewrite eq 1 to x=80-y and plug it into eq 2
:
8(80-y)+3y=400
:
640-8y+3y=400
:
-5y=-240
:
pounds of $3 blend
:
pounds of the $8 blend
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