document.write( "Question 58713: Barn painting. Melanie can Saint a certain barn by herself in x days. Her helper Melissa can paint the same barn by herself in 2x days. Write a rational expression for the fraction of the barn that they complete in one day by working together. Evaluate the expression for x = 5 \n" ); document.write( "
Algebra.Com's Answer #40248 by stanbon(75887) ![]() You can put this solution on YOUR website! Barn painting. Melanie can Saint a certain barn by herself in x days. Her helper Melissa can paint the same barn by herself in 2x days. Write a rational expression for the fraction of the barn that they complete in one day by working together. Evaluate the expression for x = 5 \n" ); document.write( "------------ \n" ); document.write( "Melanie DATA: \n" ); document.write( "Time = x days/job ; Rate = 1/x job/day \n" ); document.write( "----------- \n" ); document.write( "Melissa DATA: \n" ); document.write( "Time = 2x days/job ; Rate = 1/2x job/day \n" ); document.write( "----------------- \n" ); document.write( "Together data: \n" ); document.write( "Rate= 1/x + 1/2x = 2/2x+1/2x= 3/2x job/day \n" ); document.write( "--------- \n" ); document.write( "If x=5, Rate = 3/(2*5)=3/10 job in a day \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |