document.write( "Question 1146053: Mary works 2.5 times faster than Peter. Together, they do a job in 12.5 hours. How long does it take Mary working alone to do the same job?
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Algebra.Com's Answer #767384 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! check \n" ); document.write( "12.5/17.5+12.5/(17.5*2.5)=1 \n" ); document.write( "12.5/17.5+5/17.5=1\r \n" ); document.write( "\n" ); document.write( ".71428571428+.28571428571=1 \n" ); document.write( "ok\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |