document.write( "Question 485252: Barry is 6 years older than his sister sue. Three years ago he was twice as old as sue was then. How old is Barry now? \n" ); document.write( "
Algebra.Com's Answer #331909 by MathTherapy(10552)![]() ![]() You can put this solution on YOUR website! Barry is 6 years older than his sister sue. Three years ago he was twice as old as sue was then. How old is Barry now?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let Barry’s age now be B \n" ); document.write( "Then Sue’s age now is B – 6\r \n" ); document.write( "\n" ); document.write( "Three (3) years ago, Barry was (B – 3) years-old \n" ); document.write( "Three (3) years ago, Sue was (B – 6 – 3), or (B – 9) years old\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since 3 years ago, Barry was twice Sue’s age then, then we’ll have: B – 3 = 2(B – 9)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "B – 3 = 2B – 18 \n" ); document.write( "- B = - 15 \n" ); document.write( "B, or Barry is now: \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "---------- \n" ); document.write( "Check \n" ); document.write( "----------\r \n" ); document.write( "\n" ); document.write( "Barry is now 15 years-old, so 3 years ago he was 15 – 3, or 12 years-old \n" ); document.write( "Sue is now 9 (15 – 6) years-old, so 3 years ago she was 9 – 3, or 6 years-old\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Three (3) years ago, Barry (12 years-old then) was twice Sue’s age (6 years-old then).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Send comments and “thank-yous” to MathMadEzy@aol.com \n" ); document.write( " |