document.write( "Question 107495This question is from textbook Intermediate Algebra
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document.write( ": If Sarah Clark can do a job in 5 hours and Dick Belli and Sarah working together can do the same job in 2 hours, find how long it takes Dick to do the job alone. \n" );
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Algebra.Com's Answer #78308 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! each person does some fraction of the job ... the fraction is the combined time divided by the indivdual time\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let D=\"Dick's time\" ... (2/5)+(2/D)=1 ... 2D+10=5D \n" ); document.write( " |