document.write( "Question 1173833: A new machine makes 15,000 aluminum cans three times faster than an older machine. With both machines operating, it takes 9 h to make 15,000 cans. How long would it take the new machine, working alone, to make 15,000 cans? \n" ); document.write( "
Algebra.Com's Answer #799162 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!


\n" ); document.write( "No doubt you have shown the problem exactly as it was given to you....

\n" ); document.write( "But it is impossible to know the intended answer, because the meaning is unclear when the problem says one machine \"DOES THE JOB 3 TIMES FASTER THAN\" another machine.

\n" ); document.write( "Sorry....

\n" ); document.write( "To be a good math question, the question must be written with language that makes it absolutely clear what the question is.

\n" ); document.write( "It's not your fault that many people who write math problems use imprecise language.

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