document.write( "Question 428072: i am 10 years old my father is 2 times older than my brother my mom is 10 years younger and my brother is 20 how old in my mother \n" ); document.write( "

Algebra.Com's Answer #297660 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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I am 10 years old.
\n" ); document.write( "I = 10
\n" ); document.write( ":
\n" ); document.write( " My father is 2 times older than my brother.
\n" ); document.write( "f = 2b
\n" ); document.write( ":
\n" ); document.write( " My mom is 10 years younger and my brother is 20.
\n" ); document.write( "m = f - 10
\n" ); document.write( "b = 20
\n" ); document.write( ";
\n" ); document.write( "How old in my mother?
\n" ); document.write( "f = 2(20)
\n" ); document.write( "f = 40
\n" ); document.write( "and
\n" ); document.write( "m = 40 - 10
\n" ); document.write( "m = 30
\n" ); document.write( ":
\n" ); document.write( "It must be a half-brother, if mom is 30 \n" ); document.write( "

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