document.write( "Question 111971: Ann's age is seven tenths of Bill's age. In 4 years Ann's age will be eight elevenths of Bills age. How old is Bill now?\r
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document.write( "I can't get this. Thanks for your help \n" );
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Algebra.Com's Answer #81752 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! A=.7B \n" ); document.write( "IN 4 YEARS THEIR AGES WILL BE: \n" ); document.write( "AMY=.7B+4 \n" ); document.write( "AND BILL WILL BE B+4 \n" ); document.write( ".7B+4=(B+4)8/11 \n" ); document.write( ".7B+4=(8B+32)/11 NOW CROSS MULTIPLY \n" ); document.write( "11(.7B+4)=8B+32 \n" ); document.write( "7.7B+44=8B+32 \n" ); document.write( "7.7B-8B=32-44 \n" ); document.write( "-.3B=-12 \n" ); document.write( "B=-12/.3 \n" ); document.write( "B=40 YEARS OLD NOW. \n" ); document.write( "A=.7*40 \n" ); document.write( "A=28 YEARS OLD NOW. \n" ); document.write( "PROOF \n" ); document.write( "28+4=(40+4)8/11 \n" ); document.write( "32=44*8/11 (DIVIDE 44 BY 11) \n" ); document.write( "32=4*8 \n" ); document.write( "32=32\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |