document.write( "Question 1098694: Question: An office supply store recently sold a black printer ink cartridge for 17.99 and a color printer ink cartridge for 25.99. At the start of a recent fall semester, a total of 55 of these cartridges was sold for a total of $1157.45. How many of each type were purchased? \n" ); document.write( "
Algebra.Com's Answer #713076 by Fombitz(32388)\"\" \"About 
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1.\"B%2BC=55\" - Total number of cartridges
\n" ); document.write( "2.\"1799B%2B2599C=115745\" - Total cost of cartridges
\n" ); document.write( "Multiply eq. 1 by 1799 and subtract from eq. 2,
\n" ); document.write( "\"1799B%2B2599C-1799B-1799C=115745-98945\"
\n" ); document.write( "\"800C=16800\"
\n" ); document.write( "Solve for C then use either equation to solve for B.
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