document.write( "Question 1133837: Heather is a cashier. She can ring up 12 customers in 9 minutes.
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Algebra.Com's Answer #751080 by Boreal(15235)\"\" \"About 
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12 c/9 min =4 c/x min
\n" ); document.write( "cross-multiply and 12x=36 and x=3 minutes\r
\n" ); document.write( "\n" ); document.write( "she can do 1 1/3 customers per minute is another way to do this.
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