SOLUTION: Jessica's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Jessica $5.70 per pound, and type B coffee costs $4.35 per pound. This mon

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Jessica's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Jessica $5.70 per pound, and type B coffee costs $4.35 per pound. This mon      Log On

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Question 1052655: Jessica's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Jessica
$5.70
per pound, and type B coffee costs
$4.35
per pound. This month, Jessica made
176
pounds of the blend, for a total cost of
$869.55
. How many pounds of type B coffee did she use?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.A%2BB=176
2.570A%2B435B=86955
Multiply eq. 1 by 435 and subtract from eq. 2,
570A%2B435B-435A-435B=86955-76560
135A=10395
A=77lbs
So then,
77%2BB=176
B=99lbs