document.write( "Question 261296: Don is twice as old as Irene; Ed is 16 years older than Irene. The sum of all three of their ages is 60 years. Find the age of each person. \n" ); document.write( "
Algebra.Com's Answer #192917 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Let d = Don's age \n" ); document.write( "Let i = Irene's age \n" ); document.write( "Let e = Ed's age \n" ); document.write( ": \n" ); document.write( "Write an equation for each statement: \n" ); document.write( ": \n" ); document.write( "\"Don is twice as old as Irene;\" \n" ); document.write( "d = 2i \n" ); document.write( ": \n" ); document.write( "\"Ed is 16 years older than Irene.\" \n" ); document.write( "e = i + 16 \n" ); document.write( ": \n" ); document.write( "\"The sum of all three of their ages is 60 years.\" \n" ); document.write( "d + i + e = 60 \n" ); document.write( ": \n" ); document.write( "Find the age of each person. \n" ); document.write( "Solve in terms of i, substitute for d & e, in the sum equation \n" ); document.write( "2i + i + (i+16) = 60 \n" ); document.write( "4i = 60 - 16 \n" ); document.write( "4i = 44 \n" ); document.write( "i = \n" ); document.write( "i = 11 \n" ); document.write( ": \n" ); document.write( "I'll let you find the ages of d and e \n" ); document.write( ": \n" ); document.write( "Check your solution by finding the sum of the ages = 60 \n" ); document.write( " \n" ); document.write( " |