document.write( "Question 1159580: printer a can printer helens project in 12 minutes. printer b can print the project in 30 minutes. if the two printers worked together, how long will they take to print out the project? \n" ); document.write( "

Algebra.Com's Answer #782625 by Shin123(626) $\"\"$ $\"About$

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Printer A can complete $\"1%2F12\"$ of the project in one minute. Printer B can complete $\"1%2F30\"$ of the project. Together, they can complete $\"1%2F12%2B1%2F30=7%2F60\"$ of the project in one minute. So it takes them $\"1%2F%287%2F60%29=highlight%2860%2F7%29\"$ minutes, or $\"highlight%288%264%2F7%29\"$ . \n" ); document.write( "

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