SOLUTION: Problem Page Charmaine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Charmaine $5.50 per pound, and type B coffee costs $4.05 per pound.

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Question 1110641: Problem Page Charmaine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Charmaine $5.50 per pound, and type B coffee costs $4.05 per pound. This month's blend used four times as many pounds of type B coffee as type A, for a total cost of $781.20 . How many pounds of type A coffee were used?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Problem Page Charmaine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Charmaine $5.50 per pound, and type B coffee costs $4.05 per pound. This month's blend used four times as many pounds of type B coffee as type A, for a total cost of $781.20 . How many pounds of type A coffee were used?
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Value Eq:: 5.5A + 4.05B = 781.20
Quantity Eq:: B = 4A
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Solve for "A"::
5.5A + 4.05(4A) = 781.20
(5.5+16.2)A = 781.2
A = 781.2/21.7
A = 36 lbs (amt of A to use)
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Cheers,
Stan H.
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