document.write( "Question 813634: John is 1 year old. Johns sister is half his age. When john is 100 years old, How old is his sister? \n" ); document.write( "
Algebra.Com's Answer #489832 by TimothyLamb(4379)\"\" \"About 
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j = 1
\n" ); document.write( "s = j - (1/2)
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\n" ); document.write( "j = 100
\n" ); document.write( "s = j - (1/2)
\n" ); document.write( "s = 100 - (1/2)
\n" ); document.write( "s = 99 + (1/2)
\n" ); document.write( "---
\n" ); document.write( "Answer:
\n" ); document.write( "when john is 100 his sister is 99 and 1/2 years old
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