document.write( "Question 690964: Jim's age is 4 times that of his sister. The product of their ages is 36. How old is each? \n" ); document.write( "
Algebra.Com's Answer #426471 by farah(18)\"\" \"About 
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let J be Jim and S be sister..\r
\n" ); document.write( "\n" ); document.write( "J=4S
\n" ); document.write( "JS=36\r
\n" ); document.write( "\n" ); document.write( "4S(S)=36
\n" ); document.write( "4S^2=36
\n" ); document.write( "S^2=9
\n" ); document.write( "square root of 9 is 3\r
\n" ); document.write( "\n" ); document.write( "so, sister's age is 3, and jim's age = 4(3) is 12\r
\n" ); document.write( "\n" ); document.write( "sister= 3 years old
\n" ); document.write( "jim = 12 years old
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