document.write( "Question 963257: An artist was commissioned to make a 500-g statue composed of 60% tin. She has 70% tin alloy and 30% tin alloy available .
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document.write( "What mass of each alloy is required to produce the desired alloy? Use an elimination method to solve this problem?\r
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document.write( "I tries my best , here is my solution. Please help my correct anything I did wrong. thank you kindly =)\r
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document.write( "x represent the mass of 70%
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document.write( "y represent the mass of 30%\r
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document.write( "first equation: x+y = 500\r
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document.write( "0.60 (500 g) =300g\r
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document.write( "second equation: 0.70x + 0.35y= 300\r
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document.write( "linear system is:
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document.write( "x+y = 500
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document.write( "0.70x + 0.35y= 300\r
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document.write( "(x+y = 500) * 0.70
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document.write( "0.70x + 0.70y= 350\r
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document.write( "subtract
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document.write( "0.70x + 0.35y= 300
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document.write( "0.70x + 0.70y= 350\r
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document.write( "- 0.35y= -50
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document.write( "y= 142\r
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document.write( "x+y= 500
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document.write( "x +142= 500
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document.write( "x= 358\r
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Algebra.Com's Answer #588465 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! Your second equation is wrong. \n" ); document.write( "You changed the y coefficient from 0.3 to 0.35. \n" ); document.write( "The second equation should be \n" ); document.write( " \n" ); document.write( "You're on the right track. \n" ); document.write( "Make this change and re-solve for x and y. \n" ); document.write( "Repost if you need more help. \n" ); document.write( " \n" ); document.write( " |