document.write( "Question 886337: diana can decorate 15 cookies in an hour; jane can decorate 15 cookies in two hours. how many hours would it take to decorate 60 cookies if they worked together? \n" ); document.write( "
Algebra.Com's Answer #535859 by JulietG(1812)\"\" \"About 
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Diana decorates 15 cookies per hour
\n" ); document.write( "Jane decorates 7.5 cookies per hour
\n" ); document.write( "Total per hour for both combined is 22.5 cookies per hour
\n" ); document.write( "60 / 22.5 = 2 \"2%2F3\"hour or 2 hours 40 minutes
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