document.write( "Question 120402: There are 10 more boys than girls in a class. If one more girl joins the class, there will be twice as many boys as there are girls. How many boys and how many girls are there in the class? \n" ); document.write( "
Algebra.Com's Answer #88246 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! There are 10 more boys than girls in a class. If one more girl joins the class, there will be twice as many boys as there are girls. How many boys and how many girls are there in the class? \n" ); document.write( "----------------- \n" ); document.write( "Original numbers: \n" ); document.write( "Let number of girls be \"x\", then number of boys is \"x+10\". \n" ); document.write( "----------------------- \n" ); document.write( "Numbers after the change: \n" ); document.write( "# of girls = x+1 ; # of boys is still \"x+10\" \n" ); document.write( "-------------------------------- \n" ); document.write( "EQUATION: \n" ); document.write( "x+10 = 2(x+1) \n" ); document.write( "x+10 = 2x+2 \n" ); document.write( "x = 8 (original # of girls) ; x+10 = 18 (original # of boys) \n" ); document.write( "-------------------------------- \n" ); document.write( "Cheers, \n" ); document.write( "San H. \n" ); document.write( " \n" ); document.write( " |