document.write( "Question 491254: tom is 10 years older than Kim. Next year, he will be twice as old as Kim. How old is Tom this year? \n" ); document.write( "
Algebra.Com's Answer #334561 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Let \n" ); document.write( "t = age of Tom \n" ); document.write( "k=age of Kim \n" ); document.write( "Tom is 10 years older than Kim means if we add 10 years to Kim age both will be of same age\r \n" ); document.write( "\n" ); document.write( "t=k+10 …………..(1)\r \n" ); document.write( "\n" ); document.write( "Next year means add 1 year to the age of kim and tom both\r \n" ); document.write( "\n" ); document.write( "t+1=2(k+1) \n" ); document.write( "t+1=2k+2 \n" ); document.write( "t=2k+2-1 \n" ); document.write( "t=2k+1……………(2)\r \n" ); document.write( "\n" ); document.write( "Put the value of t from (2) to (1) \n" ); document.write( "2K+1=k+10 \n" ); document.write( "2k=k+10-1 \n" ); document.write( "2k=k+9 \n" ); document.write( "2k-k=9 \n" ); document.write( "k=9\r \n" ); document.write( "\n" ); document.write( "Put the value of k in (1) \n" ); document.write( "t=k+10 \n" ); document.write( "t=9+10 \n" ); document.write( "t=19\r \n" ); document.write( "\n" ); document.write( "Tom is 19 years old and Kim is 9 years old. \n" ); document.write( " \n" ); document.write( " |