document.write( "Question 156116: If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks? \r
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Algebra.Com's Answer #114971 by oscargut(2103) You can put this solution on YOUR website! Steven can mix 20 drinks in 5 minutes,then he mix 4 drinks in a minute \n" ); document.write( "Sue can mix 20 drinks in 10 minutes,then he mix 2 drinks in a minute \n" ); document.write( "Jack can mix 20 drinks in 15 minutes, then he mix 4/3 drinks in a minute \r \n" ); document.write( "\n" ); document.write( "then in a minute working together they mix 4+2+4/3 drinks =22/3 drinks \n" ); document.write( "then 22/3 = 1 minute \n" ); document.write( " 20 = x minutes\r \n" ); document.write( "\n" ); document.write( "x=20/(22/3)=60/22=30/11\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer: 30/11 minutes (aprox 2.73 minutes)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |