document.write( "Question 980812: Bill and Ben have a combined age of 91 yrs , Bill is now twice as old as Ben was, when Bill was as old as Ben is now .How old are Bill and Ben ??
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Algebra.Com's Answer #601898 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! Bill is x \n" ); document.write( "Ben is 91-x\r \n" ); document.write( "\n" ); document.write( "number of years between the two is x-(91-x)=2x-91 \n" ); document.write( "When Bill was Ben's age, 2x-91 years ago, Bill was x-(2x-91)=91-x years old. \n" ); document.write( "That 91-x is 2*the age of Ben at that time. \n" ); document.write( "Ben is 91-x, and from that is subtracted 2x-91. That makes Ben 182-3x years old.\r \n" ); document.write( "\n" ); document.write( "Therefore, 91-x=2(182-3x) \n" ); document.write( "91-x=364-6x \n" ); document.write( "5x=273 \n" ); document.write( "x=54.6 \n" ); document.write( "91-x=36.4 \n" ); document.write( "18.2 years ago, Bill was 36.4 years old, Ben's age, and Ben was 18.2 years old, half as much.\r \n" ); document.write( "\n" ); document.write( "Bill is 54.6 years old \n" ); document.write( "Ben is 36.4 years old \n" ); document.write( " |