document.write( "Question 584863: IF YOUR 140 FOOT DIAMETER SECONDARY CLARIFIER RAKE'S SPEED IS 1.6 REVOLUTIONS PER HOUR...HOW LONG WILL IT TAKE THE RAKE ARM TO COMPLETE 1 REVOLUTION? \n" ); document.write( "
Algebra.Com's Answer #372928 by JBarnum(2146)\"\" \"About 
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from what youve said it takes 1 hour for 1.6 revolutions so the set up is
\n" ); document.write( "60min/1.6=x/1
\n" ); document.write( "60=1.6x
\n" ); document.write( "37.5=x
\n" ); document.write( "37.5 minutes or 37 mins 30 secs
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