document.write( "Question 606789: i am less than 50.i am greater than 39.my tens digit is 2 more than my ones digit.what number am i? \n" ); document.write( "
Algebra.Com's Answer #382224 by nerdybill(7384)\"\" \"About 
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i am less than 50.i am greater than 39.my tens digit is 2 more than my ones digit.what number am i?
\n" ); document.write( "Let x = number of ones
\n" ); document.write( "then
\n" ); document.write( "x+2 = number of tens
\n" ); document.write( ".
\n" ); document.write( "39 < x + 10(x+2) < 50
\n" ); document.write( "39 < x + 10x+20 < 50
\n" ); document.write( "39 < 11x+20 < 50
\n" ); document.write( ".
\n" ); document.write( "case 1:
\n" ); document.write( "39 < 11x+20
\n" ); document.write( "19 < 11x
\n" ); document.write( "19/11 < x
\n" ); document.write( "1.73 < x
\n" ); document.write( ".
\n" ); document.write( "case 2:
\n" ); document.write( "11x+20 < 50
\n" ); document.write( "11x < 30
\n" ); document.write( "x < 30/11
\n" ); document.write( "x < 2.73
\n" ); document.write( ".
\n" ); document.write( "We conclude that:
\n" ); document.write( "1.73 < x < 2.73
\n" ); document.write( "The ONLY integer between the two values is 2
\n" ); document.write( ".
\n" ); document.write( "Answer: 2\r
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