document.write( "Question 317263: ann is 7/10 of bob's age. in 4 years and will be 8/11 of bob's age. How old is Bob now? \n" ); document.write( "
Algebra.Com's Answer #227130 by JBarnum(2146)\"\" \"About 
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\n" ); document.write( "\"A=%287%2F10%29B\"
\n" ); document.write( "\"A%2B4=%288%2F11%29%28B%2B4%29\"
\n" ); document.write( "\"%287%2F10%29B%2B4=%288%2F11%29B%2B%2832%2F11%29\"
\n" ); document.write( "\"%287%2F10%29B%2B%2844%2F11%29=%288%2F11%29B%2B%2832%2F11%29\"
\n" ); document.write( "\"%287%2F10%29B%2B%2812%2F11%29=%288%2F11%29B\" LCD 10*11=110
\n" ); document.write( "\"%2812%2F11%29=%2880%2F110%29B-%2877%2F110%29B\"
\n" ); document.write( "\"%2812%2F11%29=%283%2F110%29B\" multiply by 110
\n" ); document.write( "\"120=%283%29B\"divide by 3
\n" ); document.write( "\"60=B\"
\n" ); document.write( "bob is 60 years old
\n" ); document.write( "ann is 42 years old
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