SOLUTION: Kevin's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Kevin $5.90 per pound, and type B coffee costs $4.30 per pound. This month,

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Question 955645: Kevin's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Kevin
$5.90
per pound, and type B coffee costs
$4.30
per pound. This month, Kevin made
136
pounds of the blend, for a total cost of
$664.80
. How many pounds of type B coffee did he use?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Mixture: Two-Part, price or cost, both material amounts unknown
http://www.algebra.com/my/mixture-price-two-part-both-parts-unknown.lesson?content_action=show_dev

Can you find a way to do the problem in ONE variable only? Some of my more recent two-part mixture responses were done or shown using just a single variable.