document.write( "Question 281855: IF a cold-water faucet is left on, the sink will fill in 10 mins. If the hot-water faucet is left on, the sink will fill in 12 mins. How long would it take the sink to fill if both faucets are left on? \n" ); document.write( "
Algebra.Com's Answer #204765 by richwmiller(17219)\"\" \"About 
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x/10+x/12=1
\n" ); document.write( "12x+10x=120
\n" ); document.write( "22x=120
\n" ); document.write( "x=120/22
\n" ); document.write( "x=60/11
\n" ); document.write( "x=5.45 minutes to fill the sink with hot and cold water turned on.
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