document.write( "Question 1111127: In a ship of 30 people the sailors are 2/3 of the soldiers
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document.write( "Find out the number of soldiers?? \n" );
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Algebra.Com's Answer #726146 by Theo(13342) You can put this solution on YOUR website! a = number of sailors. \n" ); document.write( "b = number of soldiers.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a + b = 30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sailors are 2/3 of the soldiers.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a = 2/3 * b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "replace a with 2/3 * b in a + b = 30 to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2/3 * b + b = 30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "combine like terms to get 5/3 * b = 30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "multiply both sides of the equation by 3/5 to get b = 3/5 * 30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "this results in b = 18.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "there are 18 soldiers.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "there are 2/3 * 18 = 12 sailors.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "total sailors plus soldiers is 30.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your solution is 18 soldiers.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |