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 #782624 by Boreal(15235) $\"\"$ $\"About$

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in 1 minutes printer a can do (1/12) of the project and in x minutes (x/12). Similarly, b can do (x/30)
\n" ); document.write( "Together, they do 1 fun project or (x/12)+(x/30)=1
\n" ); document.write( "multiply through by 60
\n" ); document.write( "5x+2x=60
\n" ); document.write( "x=60/7 minutes or 8.57 minutes. A does 71.4% and B does 28.6%
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