Problema Solution
Isabel's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Isabel
$4.50
per pound, and type B coffee costs
$5.90
per pound. This month, Isabel made
138
pounds of the blend, for a total cost of
$731.60
. How many pounds of type B coffee did she use?
Answer provided by our tutors
submitting a problem multiple times simply results in blocking additional submissions
let 'a' represent the number of pounds of type A used, then '138-a' represents the number of pounds of type B used
the equation is then:
731.60 = 4.5a + 5.9(138-a)
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solving for the number of pounds of type A
---------------------
a = 59
138 - 59 = 79
Therefore, 59 pounds of type A are used and 79 pounds of type B are used.