document.write( "Question 1186991: The sum of the digits of a two-digit number is 13. The tens digit is seventeen
\n" ); document.write( "less than the square of the units digit. Find the number.
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Algebra.Com's Answer #817948 by josgarithmetic(39618)\"\" \"About 
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u and t
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\n" ); document.write( "\n" ); document.write( "\"system%28u%2Bt=13%2Ct=u%5E2-17%29\"\r
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\n" ); document.write( "\n" ); document.write( "Looking at the formula for t, the second equation and taking only from the digits,
\n" ); document.write( "\"4%3Ct%3C10\", so very few choices can be examined to see how they fit.\r
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\n" ); document.write( "\n" ); document.write( "Try 5 for u ?
\n" ); document.write( "\"t=5%5E2-18\"
\n" ); document.write( "\"t=8\"
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\n" ); document.write( "\"u%2Bt=13\"
\n" ); document.write( "\"u%2B8=13\"
\n" ); document.write( "\"u=5\"
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\n" ); document.write( "\n" ); document.write( "The two digit number: 85
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