document.write( "Question 1095461: This year, serena is one-seventh of her cousin's age. Two years from now, serena will be one-fourth of her cousein's age. In how many years will serena be half her cousin's age? \n" ); document.write( "
Algebra.Com's Answer #709980 by Alan3354(69443)\"\" \"About 
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This year, serena is one-seventh of her cousin's age. Two years from now, serena will be one-fourth of her cousein's age. In how many years will serena be half her cousin's age?
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\n" ); document.write( "S = C/7
\n" ); document.write( "S+2 = (C+2)/4
\n" ); document.write( "Find their ages.
\n" ); document.write( "Sub for S in the 2nd eqn:
\n" ); document.write( "C/7 + 2 = (C+2)/4
\n" ); document.write( "4C + 56 = 7(C+2) = 7C+14
\n" ); document.write( "C = 14
\n" ); document.write( "S = 2
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\n" ); document.write( "Difference = 12 years.
\n" ); document.write( "--> 1/2 at ages 12 & 24
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\n" ); document.write( "In how many years will serena be half her cousin's age?
\n" ); document.write( "In 10 years.
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