document.write( "Question 699713: Suppose you are starting an office cleaning service. you have spent $315 on supplies. to clean an offie, you use $4 worth of supplies. you charge $25 per office. how many offices must you clean to break even? I also need to solve this using a system of linear equtations! Thanks for the help in advance :) \n" ); document.write( "

Algebra.Com's Answer #431501 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
Suppose you are starting an office cleaning service. you have spent $315 on supplies. to clean an offie, you use $4 worth of supplies. you charge $25 per office. how many offices must you clean to break even? I also need to solve this using a system of linear equtations!
\n" ); document.write( "-------
\n" ); document.write( "Let \"x\" be the number of offices you clean.
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\n" ); document.write( "Revenue = 25x dollars
\n" ); document.write( "Cost = 315 + 4x
\n" ); document.write( "-------
\n" ); document.write( "Break even means cost = revenue
\n" ); document.write( "-----
\n" ); document.write( "Solve:
\n" ); document.write( "25x = 315+4x
\n" ); document.write( "21x = 315
\n" ); document.write( "x = 15
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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