document.write( "Question 90287: I need help!
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\n" ); document.write( "\n" ); document.write( "Two numbers are in the ratio of 7 to 10. If 24 is added to each number, the resulting numbers are in the ratio of 1 to 2. Find the smaller of the two original numbers.
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Algebra.Com's Answer #65553 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "I don't know how to make a formula for this word problem: \r\n" );
document.write( "Two numbers are in the ratio of 7 to 10. If 24 is added\r\n" );
document.write( "to each number, the resulting numbers are in the ratio \r\n" );
document.write( "of 1 to 2. Find the smaller of the two original numbers.\r\n" );
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document.write( "Two numbers are in the ratio of 7 to 10\r\n" );
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document.write( "\"x%2Fy\" = \"7%2F10\"\r\n" );
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document.write( "which becomes upon cross-multiplying:\r\n" );
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document.write( "\"10x\" = \"7y\"\r\n" );
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document.write( "If 24 is added to each number, the resulting numbers\r\n" );
document.write( " are in the ratio of 1 to 2\r\n" );
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document.write( "\"%28x%2B24%29%2F%28y%2B24%29\" = \"1%2F2\"\r\n" );
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document.write( "which becomes upon cross-multiplying:\r\n" );
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document.write( "\"2%28x%2B24%29\" = \"1%28y+%2B+24%29\"\r\n" );
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document.write( "\"2x%2B48\" = \"y+%2B+24\"\r\n" );
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document.write( "\"2x+-+y\" = \"-24\"\r\n" );
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document.write( "So we have this system of equations:\r\n" );
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document.write( "\"10x\" = \"7y\"\r\n" );
document.write( "\"2x+-+y\" = \"-24\"\r\n" );
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document.write( "Solve that system of equations and the answer is\r\n" );
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document.write( "x = -42 and y = -60\r\n" );
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document.write( "The smaller is -60, because the SMALLER of two NEGATIVE\r\n" );
document.write( "numbers is always the one with the LARGER absolute value.\r\n" );
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document.write( "So the answer is -60\r\n" );
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document.write( "Let's check: with the words:\r\n" );
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document.write( "-42 and -60 are in the ratio of 7 to 10 because the fraction\r\n" );
document.write( "\"%28-42%29%2F%28-60%29\" reduces to \"7%2F10\" \r\n" );
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document.write( "If 24 is added to each number, we get -42+24 or -18, and\r\n" );
document.write( "-60+24 or -36\r\n" );
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document.write( "-18 and -36 are in the ratio of 1 to 2 because the fraction\r\n" );
document.write( "\"-18%2F-36\" reduces to \"1%2F2\"\r\n" );
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document.write( "Edwin
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