SOLUTION: A store mixes Kentucky bluegrass worth $11 per pound and rye grass worth $15 per pound. The mixture is to sell for $14 per pound. Find how much of e should be to make a 552 pound m

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A store mixes Kentucky bluegrass worth $11 per pound and rye grass worth $15 per pound. The mixture is to sell for $14 per pound. Find how much of e should be to make a 552 pound m      Log On


   

Question 769979: A store mixes Kentucky bluegrass worth $11 per pound and rye grass worth $15 per pound. The mixture is to sell for $14 per pound. Find how much of e should be to make a 552 pound mixture?
How many pounds of rye grass should be in the mixture?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A store mixes Kentucky bluegrass worth $11 per pound and rye grass worth $15 per pound. The mixture is to sell for $14 per pound. Find how much of e should be to make a 552 pound mixture?
How many pounds of rye grass should be in the mixture?
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Quantity:: k + r = 552 lbs
Value::::11k+15r = 14*552 dollars
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Modify to eliminate::
11k + 11r = 11*552
11k + 15r = 14*552
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4r = 3*552
r = 3*138
r = 414 lbs (amt. of rye needed)
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k = 552-414 = 138 lbs (amt. of blue grass needed)
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Cheers,
Stan H.