document.write( "Question 262839: Pam is half as old as her brother Bill. Eight years ago Bill was six times as old as Pam. How old are they now? \n" ); document.write( "

Algebra.Com's Answer #193637 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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\n" ); document.write( "let p = Pam's present age
\n" ); document.write( "let b = Bill's present age
\n" ); document.write( ":
\n" ); document.write( "Write an equation for each statement;
\n" ); document.write( ":
\n" ); document.write( "\"Pam is half as old as her brother Bill.\"
\n" ); document.write( "p = .5b
\n" ); document.write( ":
\n" ); document.write( "\" Eight years ago Bill was six times as old as Pam.\"
\n" ); document.write( "b - 8 = 6(p - 8)
\n" ); document.write( "b - 8 = 6p - 48
\n" ); document.write( "b = 6p - 48 + 8
\n" ); document.write( "b = 6p - 40
\n" ); document.write( ":
\n" ); document.write( "How old are they now?
\n" ); document.write( "Replace p with .5b in the above equation
\n" ); document.write( "b = 6(.5b) - 40
\n" ); document.write( "b = 3b - 40
\n" ); document.write( "40 = 3b - b
\n" ); document.write( "40 = 2b
\n" ); document.write( "b = $\"40%2F2\"$
\n" ); document.write( "b = 20
\n" ); document.write( ":
\n" ); document.write( "I'll let you find Pam's age. Check your solutions in the 2nd statement. \n" ); document.write( "

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