document.write( "Question 79608: 1 pipe will fill a container in 20 minutes, the second pipe will fill the container in 30 minutes, how long will it take to fill the conatiner with both pipes? \n" ); document.write( "
Algebra.Com's Answer #57130 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1 pipe will fill a container in 20 minutes, the second pipe will fill the container in 30 minutes, how long will it take to fill the conatiner with both pipes?
\n" ); document.write( "-----------------------\r
\n" ); document.write( "\n" ); document.write( "First pipe DATA:
\n" ); document.write( "Time = 20 min/job : Rate = 1/20 job/min
\n" ); document.write( "------------------
\n" ); document.write( "Second pipe DATA:
\n" ); document.write( "Time = 30 min/job ; Rate = 1/30 job/min
\n" ); document.write( "---------------
\n" ); document.write( "Together DATA:
\n" ); document.write( "Time = x min/job ; Rate = 1/x job/min
\n" ); document.write( "============
\n" ); document.write( "EQUATION:
\n" ); document.write( "1st pipe rate + 2nd pipe rate = together rate
\n" ); document.write( "1/20 + 1/30 = 1/x
\n" ); document.write( "Multiply thru by 60x to get:
\n" ); document.write( "3x + 2x = 60
\n" ); document.write( "5x = 60
\n" ); document.write( "x= 12 min/job (time required for pipes working together to do the job)
\n" ); document.write( "===================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
\n" );