document.write( "Question 588628: The difference between the ages of two sisters is 5 years.three years ago,the ratio of their ages is 4:3. Find their present ages \n" ); document.write( "
Algebra.Com's Answer #374566 by stanbon(75887)\"\" \"About 
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The difference between the ages of two sisters is 5 years.three years ago,the ratio of their ages is 4:3. Find their present ages
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\n" ); document.write( "Equations:
\n" ); document.write( "x - y = 5
\n" ); document.write( "(x-5)/(y-5) = 4/3
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\n" ); document.write( "Substitute for \"y\" and solve for \"x\":
\n" ); document.write( "(x-5)/(x-5-5) = 4/3
\n" ); document.write( "(x-5)/(x-10) = 4/3
\n" ); document.write( "3x-15 = 4x-40
\n" ); document.write( "x = 25 (age of one of the sisters
\n" ); document.write( "Solve for \"y\":
\n" ); document.write( "x-y = 5
\n" ); document.write( "25-y = 5
\n" ); document.write( "y = 20 (age of the other sister)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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