Sanjay S. answered 01/21/15
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Gibran,
Assume he used x pounds of type A
The total blend was 141 pounds so he used (141-x) pounds of B
Calculate total cost
5.55*x + 4.40*(141-x) = 715.85
1.15*x = 715.85 - 620.4
X = 83
He used 83 pounds of coffee A