document.write( "Question 1187183: Freda is starting a youth group. She is the only member now, but her plans are to have
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document.write( "every member find 2 new members each week. If her plan works, how many
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document.write( "members will the group have had the end of 1 month. \n" );
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Algebra.Com's Answer #818113 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "To solve the problem, I make this table of three lines.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The upper line counts weeks.\r\n" ); document.write( "\r\n" ); document.write( "Middle line shows the number of new members to join (the increment).\r\n" ); document.write( "\r\n" ); document.write( "The lowest line shows current total members.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "week 0 1 2 3 4\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "new members 1 2 3*2 = 6 9*2=18 27*2=54\r\n" ); document.write( "to join\r\n" ); document.write( " Freda herself\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "total current\r\n" ); document.write( "number of members 1 1+2=3 3+6=9 9+18=27 27+54=81 <<<---=== ANSWER\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "From the solution, you see that if this scheme works, it triples the number of members each week.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |