SOLUTION: she need to prepare 150 pounds of blended coffee beans selling for 4.97 per pound. she plans to do this by blending together a high-quality bean costing 6.25 per pound and a cheape
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Question 896188: she need to prepare 150 pounds of blended coffee beans selling for 4.97 per pound. she plans to do this by blending together a high-quality bean costing 6.25 per pound and a cheaper quality bean at 3.50 per pound. to the nearest pound, find how much high-quality coffee bean and how much cheaper coffee bean she would blend Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = pounds of high-quality coffee bean needed
Let = pounds of cheaper coffee bean needed
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(1)
(2)
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(2)
(2)
(2)
(2)
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Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
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and
(1)
(1)
(1)
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80.182 pounds of high-quality coffee bean are needed
69.818 pounds of cheaper coffee bean are needed
check:
(2)
(2)
(2)
(2)
OK
