document.write( "Question 910298: Sarah is nine years older than her sister Tara ,who is seven.What is their average age.thanks \n" ); document.write( "
Algebra.Com's Answer #552367 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Sarah is nine years older than her sister Tara ,who is seven.What is their average age.thanks \n" ); document.write( "-------------------- \n" ); document.write( "Tara:: 7 yrs \n" ); document.write( "Sarah: 7+9 = 16 yrs \n" ); document.write( "----- \n" ); document.write( "Average:: (7+16)/2 = 23/2 = 11.5 yrs \n" ); document.write( "----------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------- \n" ); document.write( " |