document.write( "Question 888482: Mary and Carol are doing a month project. Carol can do work twice as fast as Mary. If they work together they can finish the project in 4 hours. hOW WOULD YOU Reprsent the amount of work that mary can finish in 1 hour? how about the amount of work that carol finish in 1 hour? \n" ); document.write( "
Algebra.Com's Answer #537406 by LinnW(1048)\"\" \"About 
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Set C = Carol's rate in projects per hour
\n" ); document.write( " M = Mary's rate is projects per hour
\n" ); document.write( "4*( combined rates for Carol and Mary ) = 1 project completion
\n" ); document.write( " 4(C+M) = 1
\n" ); document.write( "Since Carol's rate is 2 times Mary's rate we can rewrite the above
\n" ); document.write( " \"4%282M+%2B+M%29+=+1\" where C = 2M
\n" ); document.write( " \"8M+%2B+4M+=+1\"
\n" ); document.write( " \"12M+=+1\"
\n" ); document.write( "divide each side by 12
\n" ); document.write( " M = 1/12
\n" ); document.write( "Mary's rate is 1/12 project per hour
\n" ); document.write( "She can complete 1/12 of the project in one hour.
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