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In 2009, a diabetic express company charged $39.95 for a vial of type A insulin and $30.34 for a vial of type B insulin. If a total of $1747.64 was collected for 50 vials of insulin, how many vials of each type were sold?

3 answers

you are told that

A + B = 50
39.95A + 30.34B = 1747.64
Now go for it.

65

A+B=50
39.95A+30.34B=174.64

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