document.write( "Question 979435: a certain printer can do a printing job in 3 hours. With a second printer, the same job can be done in 2 hours. how long would it take the second printer to do the same job?
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Algebra.Com's Answer #600762 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
First printer's rate,
\n" ); document.write( " $\"R%5B1%5D%2A3=100\"$
\n" ); document.write( " $\"R%5B1%5D=100%2F3\"$
\n" ); document.write( "Second printer's rate,
\n" ); document.write( " $\"R%5B2%5D%2A2=100\"$
\n" ); document.write( " $\"R%5B2%5D=100%2F2=50\"$
\n" ); document.write( "Together,
\n" ); document.write( " $\"%28R%5B1%5D%2BR%5B2%5D%29%2AT=100\"$
\n" ); document.write( " $\"T=100%2F%28R%5B1%5D%2BR%5B2%5D%29\"$
\n" ); document.write( " $\"T=100%2F%28100%2F3%2B50%29\"$
\n" ); document.write( " $\"T=100%2F%28100%2F3%2B150%2F3%29\"$
\n" ); document.write( " $\"T=300%2F%28250%29\"$
\n" ); document.write( " $\"T=6%2F5\"$ $\"hr\"$
\n" ); document.write( "1 hr 12 minutes. \n" ); document.write( "

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