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document.write( "Bobby is three times as old as Kelly. The sum of their ages is 46. How old is Bobby? \n" );
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Algebra.Com's Answer #420795 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! B=3K \n" ); document.write( "B+K=46 REPLACE B BY 3K & SOLVE FOR K. \n" ); document.write( "(3K)+K=46 \n" ); document.write( "4K=46 \n" ); document.write( "K=46/4 \n" ); document.write( "K=11.5 AGE OF KELLY. \n" ); document.write( "B=3*11.5 \n" ); document.write( "B=34.5 AGE OF BOBBY. \n" ); document.write( "PROOF: \n" ); document.write( "11.5+34.5=46 \n" ); document.write( "46=46 \n" ); document.write( " |