document.write( "Question 140436: A jar has twice as many red marbles as white marbles and the ratio of blue marbles to white marbles in the jar is 3:5. There are only red, white and blue marbles in the jar. If there are 2100 more red marbles than blue ones, how many marbles are in the jar altogether?\r
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document.write( "so far I came up with 6600 white, 11000 blue and 13200 red but that gives me 2200 more red and I need 2100. I just cant think anymore.. Am I close? Maria \n" );
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Algebra.Com's Answer #102271 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A jar has twice as many red marbles as white marbles \n" ); document.write( "Eq: r -2w + 0 = 0 \n" ); document.write( "---------------------- \n" ); document.write( "and the ratio of blue marbles to white marbles in the jar is 3:5 \n" ); document.write( "Eq: 0 - 5w + 3b = 0 \n" ); document.write( "---------------------- \n" ); document.write( "There are only red, white and blue marbles in the jar. \n" ); document.write( "If there are 2100 more red marbles than blue ones \n" ); document.write( "Eq: r + 0 -b = 2100 \n" ); document.write( "--------------------- \n" ); document.write( "how many marbles are in the jar altogether? \n" ); document.write( "------------------- \n" ); document.write( "You have three equations with three unknows: \n" ); document.write( "Solving the set of equations you would get: \n" ); document.write( "r = 12600 red marbles \n" ); document.write( "w = 6300 white marbles \n" ); document.write( "b = 10500 blue marbles \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |