document.write( "Question 1069143: The factory used to produce 126 articles a day. As a result of retooling, production increased to 189 articles a day. What was the percent increase in labor productivity? \n" ); document.write( "
Algebra.Com's Answer #684376 by ikleyn(52802)\"\" \"About 
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\n" ); document.write( "\"%28%28189-126%29%2F126%29%2A100\" percents.\r
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\n" ); document.write( "\n" ); document.write( "Use your calculator.\r
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\n" ); document.write( "\n" ); document.write( "There is a bunch of lessons on percentage problems \r
\n" ); document.write( "\n" ); document.write( "    - Percentage problems\r
\n" ); document.write( "\n" ); document.write( "    - Percentage word problems (Type 1 problems, Finding the Part)\r
\n" ); document.write( "\n" ); document.write( "    - Percentage word problems (Type 2 problems, Finding the Rate)\r
\n" ); document.write( "\n" ); document.write( "    - Percentage word problems (Type 3 problems, Finding the Base)\r
\n" ); document.write( "\n" ); document.write( "    - More complicated percentage problems\r
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