SOLUTION: store sells bluegrass seed that is worth $6 per pound and ryegrass seed that is worth $3 per pound. How much of each should be mixed to obtain 80 pounds of a blend that is worth $

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Question 931588: store sells bluegrass seed that is worth $6 per pound and ryegrass seed that is worth $3 per pound. How much of each should be mixed to obtain 80 pounds of a blend that is worth $5 per pound?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
store sells bluegrass seed that is worth $6 per pound and ryegrass seed that is worth $3 per pound. How much of each should be mixed to obtain 80 pounds of a blend that is worth $5 per pound?
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Weight Equation:: b + r = 80 lbs
Value Equation::: 6b + 3r = 5*80 dollars
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Modify::
6b + 6r = 6*80
6b + 3r = 5*80
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3r = 80
r = 80/3 = 26 2/3 lbs (amt. of rye seed needed)
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Solve for "b"::
b + (80/3) = 80
b = 53 1/3 lb (amt. of bluegrass seed needed)
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Cheers,
Stan H.
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