document.write( "Question 1011255: three sisters ages total 62 years. the first sister is 5 years older than the second, and the second is 1/4 of the age of the third. find the age of the three sisters \n" ); document.write( "
Algebra.Com's Answer #627009 by josmiceli(19441)\"\" \"About 
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Let the present ages of the sisters be
\n" ); document.write( "\"+a+\", \"+b+\", and \"+c+\"
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\n" ); document.write( "(1) \"+a+%2B+b+%2B+c+=+62+\"
\n" ); document.write( "(2) \"+a+=+b+%2B+5+\"
\n" ); document.write( "(3) \"+b+=+%281%2F4%29%2Ac+\"
\n" ); document.write( "----------------------
\n" ); document.write( "There are 3 unknowns and 3 equations
\n" ); document.write( "so this is solvable
\n" ); document.write( "--------------------
\n" ); document.write( "(3) \"+c+=+4b+\"
\n" ); document.write( "Substitute (2) and (3) into (1)
\n" ); document.write( "(1) \"+b+%2B+5+%2B+b+%2B+4b+=+62+\"
\n" ); document.write( "(1) \"+6b+%2B+5+=+62+\"
\n" ); document.write( "(1) \"+6b+=+57+\"
\n" ); document.write( "(1) \"+b+=+9.5++\"
\n" ); document.write( "and
\n" ); document.write( "(3) \"+c+=+4b+\"
\n" ); document.write( "(3) \"+c+=+4%2A9.5+\"
\n" ); document.write( "(3) \"+c+=+38+\"
\n" ); document.write( "and
\n" ); document.write( "(2) \"+a+=+b+%2B+5+\"
\n" ); document.write( "(2) \"+a+=9.5+%2B+5+\"
\n" ); document.write( "(2) \"+a+=+14.5+\"
\n" ); document.write( "Their ages are: 9.5, 14.5, and 38
\n" ); document.write( "check:
\n" ); document.write( "(1) \"+a+%2B+b+%2B+c+=+62+\"
\n" ); document.write( "(1) \"+14.5+%2B+9.5+%2B+38+=+62+\"
\n" ); document.write( "(1) \"+62+=+62+\"
\n" ); document.write( "OK
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