document.write( "Question 947277: The time to complete a project is inversely proportional to the number of people who are working on the project. A class project can be completed by 3 students in 20 days. In order to finish the project in 5 days how many more students should the group add? \r
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document.write( "I got 3/20=x/5
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document.write( "Then I cross multiply
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document.write( " 20x=15
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document.write( "Then I divided both sides by 20x which I got 0.75
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document.write( "Please help I know the answer is wrong but I cannot figure out the answer \n" );
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Algebra.Com's Answer #577984 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! The time to complete a project is inversely proportional to the number of people who are working on the project.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Choosing t and n for variables in the corresponding places in the description,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "t is inversely proportional to the n.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let k be the proportionality constant or variation constant.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Next part of problem description: \n" ); document.write( "n=3, t=20;\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "That data allows you to find a value for k. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "- \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The question part asks for a difference, but you can very well still find how many students. \n" ); document.write( "t=5, you now know k, what is n?\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "--\r \n" ); document.write( "\n" ); document.write( "Not clear enough? The variation equation was according to description, \n" ); document.write( " \n" ); document.write( "and the data given allowed to find k=60, so the variation equation is \n" ); document.write( " \n" ); document.write( "You want to know n for t=5. \n" ); document.write( "SOLVE FOR n. \n" ); document.write( "- \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Again reminder, the question asks for a DIFFERENCE. \n" ); document.write( " |