document.write( "Question 245741: my father is 4 times older then me. in 20 years he will be only twice as old as me, how old am i and my father. what is the mathmatic problem and the steps to solve it \n" ); document.write( "
Algebra.Com's Answer #179445 by TheProdicalSon(34)![]() ![]() ![]() You can put this solution on YOUR website! set it up like this\r \n" ); document.write( "\n" ); document.write( "4m = f \n" ); document.write( "2m + 20 = f\r \n" ); document.write( "\n" ); document.write( "Multiply the top equation by -1 to eliminate to f(represents father's age)\r \n" ); document.write( "\n" ); document.write( "-4m = -f \n" ); document.write( "2m + 20 = f\r \n" ); document.write( "\n" ); document.write( "Add equations together\r \n" ); document.write( "\n" ); document.write( "-2m + 20 = 0 \n" ); document.write( "-2m = -20\r \n" ); document.write( "\n" ); document.write( "m = 10\r \n" ); document.write( "\n" ); document.write( "You are 10 years old. \n" ); document.write( "Your father is 40 years old.\r \n" ); document.write( "\n" ); document.write( "Comment on my page if this was helpful \n" ); document.write( " |