document.write( "Question 282528: Joe is twice as old as sam. sam is 3 times as old as paul.The sum of all the ages is 90 years. how old is sam? \n" ); document.write( "
Algebra.Com's Answer #205126 by dabanfield(803) ![]() You can put this solution on YOUR website! Joe is twice as old as sam. sam is 3 times as old as paul.The sum of all the ages is 90 years. how old is sam?\r \n" ); document.write( "\n" ); document.write( "Let x be Paul's age. Then Sam's age is 3*x and Joe is 2*(3*x). \r \n" ); document.write( "\n" ); document.write( "The sum of their ages then is:\r \n" ); document.write( "\n" ); document.write( "x + 3x + 2*(3*x) = 90\r \n" ); document.write( "\n" ); document.write( "10x = 90 \n" ); document.write( "x = 9\r \n" ); document.write( "\n" ); document.write( "Paul is 9 years old. Calculate Joe's and Sam's ages based on x=9. \n" ); document.write( " |