document.write( "Question 819579: [ Five years ago Max was one third as old as his father. In 25 years he will be three fifths as old as his father. Find their ages now. ] \n" ); document.write( "
Algebra.Com's Answer #493151 by TimothyLamb(4379)\"\" \"About 
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m - 5 = (1/3)(f - 5)
\n" ); document.write( "m = (1/3)(f - 5) + 5
\n" ); document.write( "m = (1/3)f - (5/3) + (15/3)
\n" ); document.write( "m = (1/3)f + (10/3)
\n" ); document.write( "m + 25 = (3/5)(f + 25)
\n" ); document.write( "---
\n" ); document.write( "m + 25 = (3/5)(f + 25)
\n" ); document.write( "m + 25 = (3/5)f + 15
\n" ); document.write( "(1/3)f + (10/3) + 25 = (3/5)f + 15
\n" ); document.write( "(10/3) + 10 = (3/5)f - (1/3)f
\n" ); document.write( "(10/3) + (30/3) = (9/15)f - (5/15)f
\n" ); document.write( "(40/3) = (4/15)f
\n" ); document.write( "---
\n" ); document.write( "f = (40/3)(15/4)
\n" ); document.write( "f = (10)(5)
\n" ); document.write( "f = 50
\n" ); document.write( "---
\n" ); document.write( "m = (1/3)(f - 5) + 5
\n" ); document.write( "m = (1/3)(50 - 5) + 5
\n" ); document.write( "m = (1/3)(45) + 5
\n" ); document.write( "m = 15 + 5
\n" ); document.write( "m = 20
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "m = 20
\n" ); document.write( "f = 50
\n" ); document.write( "---
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