document.write( "Question 565530: I am having a hard time with this word problem i know that it is D=R*T just can't set it up!! Here goes Cara can shovel the snow from her driveway in 25min.Therease can do the smae job in 30min. How long would it take cara and Teresa to shovel the driveway if they worked toghter? \n" ); document.write( "
Algebra.Com's Answer #365847 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! I am having a hard time with this word problem i know that it is D=R*T just can't set it up!! Here goes Cara can shovel the snow from her driveway in 25min.Therease can do the smae job in 30min. How long would it take cara and Teresa to shovel the driveway if they worked toghter? \n" ); document.write( "------------ \n" ); document.write( "d = r*t is used to calculate distance, speed and time. \n" ); document.write( "This problem is not about that. \n" ); document.write( "--------------- \n" ); document.write( "Cara can shovel the snow from her driveway in 25min.Therease can do the smae job in 30min. How long would it take cara and Teresa to shovel the driveway if they worked toghter? \n" ); document.write( "----------- \n" ); document.write( "Cara does 1/25 of the driveway per minute \n" ); document.write( "Theresa does 1/30 per minute. \n" ); document.write( "--- \n" ); document.write( "Together, they do 1/25 + 1/30 per minute = 55/750 per minute \n" ); document.write( "--> 750/55 minutes per driveway \n" ); document.write( "= 150/11 minute \n" ); document.write( "=~ 13.64 minutes\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |