SOLUTION: a store mixes Kentucky bluegrass worth $11 per pound and ryegrass worth $14 per pound. the mixture is to sell for $12 per pound. Find how much of each should be used to make a 204-

Question 581161: a store mixes Kentucky bluegrass worth $11 per pound and ryegrass worth $14 per pound. the mixture is to sell for $12 per pound. Find how much of each should be used to make a 204-pound mixture.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = pounds of bluegrass needed
Let = pounds of ryegrass needed
given:
(1)
(2)
--------------------------------
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)

and, since
(1)
(1)
(1)
(1)
136 pounds of bluegrass is needed
68 pounds of ryegrass is needed
check:
(2)
(2)
(2)
(2)
(2)
(2)
OK
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