SOLUTION: An office supply store recently sold a black printer ink cartridge for ​$18.99 and a color printer ink cartridge for ​$21.99. At the start of a recent fall​ semes
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Question 1121859: An office supply store recently sold a black printer ink cartridge for $18.99 and a color printer ink cartridge for $21.99. At the start of a recent fall semester, a total of 44 of these cartridges was sold for a total of $868.56. How many of each type were purchased? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! A+B=44, A=black and B=color
18.99A+21.99B=868.56
-18.99A-18.99B=-835.56
3B=33
B=11 color cartridges for $241.89
A=33 black cartridges for $626.67
They add to $868.56
