SOLUTION: How much brand A coffee costing 3.95 per pound should be mixed with 25 pounds of brand b coffee worth 3.60 per pound in order to obtain a mixture worth 3.70 per pound?

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Question 232849: How much brand A coffee costing 3.95 per pound should be mixed with 25 pounds of brand b coffee worth 3.60 per pound in order to obtain a mixture worth 3.70 per pound?
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
let a = amount of brand A
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3.95 a + 3.60 *25 = 3.70 (25 +a)
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3.95a + 90 = 92.50 +3.70 a
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.25 a = 2.50
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a= 10 pounds
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check,,,3.95 *10 + 90 = 92.5 + 3.70 *10
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39.5 +90 = 92.5 + 37.0
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129.5 = 129.5,,,,,,,,ok
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