A garden store sells Kentucky bluegrass seed for $6 per pound and ryegrass seed for $3 per pound. How much rye must be mixed with 140 pounds of bluegrass to obtain a blend that will sell for $5 per pound?
Price of bluegrass seed = $6/pound
Price of ryegrass seed = $3/pound
Price of mixture = $5/pound
Quantity of bluegrass = 140 pound
Let, quantity of ryegrass mixed = x pound
We know th...
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