document.write( "Question 1012691: Hi
\n" ); document.write( "box x box y box z contain marbles in the ratio of 5:7:3.If there are 56 more marbles in box y than box z, how many marbles in all 3 boxes\r
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Algebra.Com's Answer #628686 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
you are given that:\r
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\n" ); document.write( "\n" ); document.write( "x:y:z = 5:7:3\r
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\n" ); document.write( "\n" ); document.write( "y = z+56\r
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\n" ); document.write( "\n" ); document.write( "y:z = 7:3 is the same as y/z = 7/3.\r
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\n" ); document.write( "\n" ); document.write( "since y has 56 more marbles than z, then you get y = z+56.\r
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\n" ); document.write( "\n" ); document.write( "replace y with z+56 in the formula of y/z = 7/3 to get (z+56)/z = 7/3\r
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\n" ); document.write( "\n" ); document.write( "multiply both sides of the equation by z to get z+56 = 7z/3\r
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\n" ); document.write( "\n" ); document.write( "multiply both sides of the equation by 3 to get 3*(z+56) = 7z\r
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\n" ); document.write( "\n" ); document.write( "distribute the multiplication to get 3z + 168 = 7z\r
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\n" ); document.write( "\n" ); document.write( "subtract 3z from both sides of the equation to get 168 = 4z\r
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\n" ); document.write( "\n" ); document.write( "divide both sides of the equation by 4 to get z = 42\r
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\n" ); document.write( "\n" ); document.write( "since y is 56 more than z, then y = 98\r
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\n" ); document.write( "\n" ); document.write( "since the ratio of x:y = 5:7 is the same as x/y = 5/7, you get:\r
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\n" ); document.write( "\n" ); document.write( "x/y = 5/7\r
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\n" ); document.write( "\n" ); document.write( "since y = 98, the equation becomes x/98 = 5/7\r
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\n" ); document.write( "\n" ); document.write( "multiply both sides of the equation by 98 to get x = 5 * 98/7\r
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\n" ); document.write( "\n" ); document.write( "solve for x to get x = 70.\r
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\n" ); document.write( "\n" ); document.write( "your solution is that x = 70, y = 98, and z = 42.\r
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\n" ); document.write( "\n" ); document.write( "y is 56 more than z because 42 + 56 = 98.\r
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\n" ); document.write( "\n" ); document.write( "ratio of x to y is 5/7 because 70/98 = 5/7.\r
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\n" ); document.write( "\n" ); document.write( "ratio of y to z is 7/3 because 98/42 = 7/3.\r
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