document.write( "Question 775495: Mary is 3 years older than tim and twice as old as anna. Tim is 2 years older than anna. What are the ages of mary, tim, and anna? \n" ); document.write( "
Algebra.Com's Answer #472984 by ankor@dixie-net.com(22740)\"\" \"About 
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Mary is 3 years older than tim and twice as old as anna. Tim is 2 years older than anna. What are the ages of mary, tim, and anna
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\n" ); document.write( "Write an equation for each statement:
\n" ); document.write( "Mary is 3 years older than tim
\n" ); document.write( "m = t + 3
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\n" ); document.write( "and twice as old as anna.
\n" ); document.write( "m = 2a
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\n" ); document.write( "Tim is 2 years older than anna.
\n" ); document.write( "t = a + 2
\n" ); document.write( ":
\n" ); document.write( "Using the 1st equation, replace t with (a+2), replace m with 2a
\n" ); document.write( "2a = (a+2) + 3
\n" ); document.write( "2a = a + 5
\n" ); document.write( "2a - a = 5
\n" ); document.write( "a = 5 yrs is Anna's age
\n" ); document.write( "then
\n" ); document.write( "t = 5 + 2
\n" ); document.write( "t = 7 yrs is Tim's age
\n" ); document.write( "and
\n" ); document.write( "m = 2(5)
\n" ); document.write( "m = 10 yrs is Mary's age
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\n" ); document.write( "These are the ages of mary, tim, and anna\r
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