# algebra

In 2009, a diabetic express company charged \$38.85 for a vial of type A insulin and \$30.49 for a vial of type B insulin. If a total of \$2004.96 was collected for
60 vials of insulin, how many vials of each type were sold?

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1. Let Type A = x
Let Type B = (60 - x)
Therefore Type A Type B = Totals
\$38.85x \$30.49(60 - x) = 2004.96
\$38.85x \$1829.4 - \$30.49x = 2004.96
\$38.85x - \$30.49x =\$ 2004.96 - \$1829.4
\$8.36x/8.36 = \$175.56/8.36
X = 21
Type A = 21
Type B = (60 - x) = 60 - 21 = 39

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