document.write( "Question 265159: sixteen more than 5 times the units' didgit of a two-digit number is twice the tens' digit. The sum of the digits is 8. What is the number? \n" ); document.write( "
Algebra.Com's Answer #195014 by stanbon(75887) ![]() You can put this solution on YOUR website! Sixteen more than 5 times the units' digit of a two-digit number is twice the tens' digit. \n" ); document.write( "The sum of the digits is 8. \n" ); document.write( "What is the number? \n" ); document.write( "---------------------------- \n" ); document.write( "Equations: \n" ); document.write( "Let the number be 10t+u \n" ); document.write( "--- \n" ); document.write( "5u + 16 = 2t \n" ); document.write( "t + u = 8 \n" ); document.write( "------------------- \n" ); document.write( "Substitute for \"t\" and solve for \"u\": \n" ); document.write( "5u + 16 = 2(8-u) \n" ); document.write( "5u + 16 = 16 - 2u \n" ); document.write( "7u = 0 \n" ); document.write( "u = 0 \n" ); document.write( "--- \n" ); document.write( "Since t+u = 8, t = 8 \n" ); document.write( "------------------------- \n" ); document.write( "Ans: 10t+u = 80 \n" ); document.write( "============================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |