document.write( "Question 1014536: A boy is 3 times as old as a girl. If their total age is 48years, how old is the girl
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Algebra.Com's Answer #630798 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "G=girl's age; B=boy's age=3G \n" ); document.write( ". \n" ); document.write( "G+B=48 years . Substitute for B. \n" ); document.write( "G+3G=48 years \n" ); document.write( "4G=48 years \n" ); document.write( "G=12 years \n" ); document.write( ". \n" ); document.write( "ANSWER : The girl is 12 years old. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "B=3G=3(12)=36 years \n" ); document.write( "The boy is 36 years old. \n" ); document.write( ". \n" ); document.write( "G+B=48 years \n" ); document.write( "12 years + 36 years = 48 years \n" ); document.write( "48 years = 48 years \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |