document.write( "Question 824865: What should be added to make it 100. Take numbers between 4-38 only 5 digits required. Every number is at the distance of 4 \n" ); document.write( "
Algebra.Com's Answer #496856 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "We seek an arithmetic series of 5 terms with common difference d=4\r\n" );
document.write( "such that S5 = 100\r\n" );
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document.write( "Sn = \"n%2F2\"[2a1 + (n-1)d]\r\n" );
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document.write( "S5 = \"5%2F2\"[2a1 + (5-1)(4)]\r\n" );
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document.write( "100 = \"5%2F2\"[2a1 + (5-1)(4)]\r\n" );
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document.write( "Multiply through by 2\r\n" );
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document.write( "200 = 5[2a1 + (4)(4)]\r\n" );
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document.write( "200 = 5[2a1 + 16]\r\n" );
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document.write( "200 = 10a1 + 80\r\n" );
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document.write( "120 = 10a1\r\n" );
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document.write( " 12 = a1\r\n" );
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document.write( "Answer = 12+16+20+24+28 = 100\r\n" );
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document.write( "Edwin
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