document.write( "Question 268577: Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together? (answer in minutes) Please show steps \n" ); document.write( "
Algebra.Com's Answer #196815 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! they each fill a FRACTION of the pool, based on their individual rates \n" ); document.write( "___ the fractions sum to one -- the WHOLE pool\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x / 30) + (x / 45) + (x / 90) = 1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "multiplying by 90 (LCD) ___ 3x + 2x + x = 90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6x = 90 ___ x = 15 \n" ); document.write( " |