SOLUTION: Harriet Amato operates a coffee shop. One of her customers wants to but two kinds of beans: Arabian Mocha and Colombian Decaf. If she wants twice as much Mocha as Colombian Decaf

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Question 966036: Harriet Amato operates a coffee shop. One of her customers wants to but two kinds of beans: Arabian Mocha and Colombian Decaf. If she wants twice as much Mocha as Colombian Decaf, how much of each can she buy for a total of $87.50? (Prices are: Arabian Mocha....$8.50/lb and Colombian Decaf....$8.00/lb.)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = pounds of Columbian Decaf needed
+2x+ = pounds of Arabian Mocha needed
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+8.5%2A%28+2x+%29+%2B+8x+=+87.5+
+17x+%2B+8x+=+87.5+
+25x+=+87.5+
+x+=+3.5+
+2x+=+7+
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7 pounds of Arabian Mocha and 3.5 pounds
of nColumbian Decaf are needed