document.write( "Question 1158785: Elroy and Herbert are product testers at a company that makes mouthwash. If Elroy can complete a gargling cycle once every 20 seconds, and Herbert can complete a gargling cycle once every 30 seconds, how many seconds will it take them together to complete a combined total of 15 gargling cycles? \n" ); document.write( "
Algebra.Com's Answer #781766 by josgarithmetic(39617)\"\" \"About 
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The rate of each in number of cycles per seconds
\n" ); document.write( "Elroy \"1%2F20\"
\n" ); document.write( "Herbert \"1%2F30\"\r
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\n" ); document.write( "\n" ); document.write( "Time for 15 cycles Elroy and Herbert together:
\n" ); document.write( "\"%281%2F20%2B1%2F30%29x=15\", \"LCD\"\"is\"\"60\".\r
\n" ); document.write( "\n" ); document.write( "\"60%281%2F20%2B1%2F30%29x=60%2A15\"\r
\n" ); document.write( "\n" ); document.write( "\"%283%2B2%29x=60%2A15\"\r
\n" ); document.write( "\n" ); document.write( "\"5x=60%2A15\"\r
\n" ); document.write( "\n" ); document.write( "\"x=highlight%28180%29\"\"seconds\"
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