document.write( "Question 672859: There are 1200 pupils 45% are boys,how many girls are there? \n" ); document.write( "
Algebra.Com's Answer #418342 by rm29924(97)![]() ![]() You can put this solution on YOUR website! 45/100=x/1200 \n" ); document.write( "we are solving to see what 45 percent of 1200 is \n" ); document.write( "make a ratio 45 out of 100 equals what number out of 1200 \n" ); document.write( "then you cross multiply \n" ); document.write( "100x=45(1200) \n" ); document.write( "100x=54000 \n" ); document.write( "divide both sides by 100 \n" ); document.write( "x=540 that is the number of boys there are \n" ); document.write( "take the total 1200 and subtract the 540 boys \n" ); document.write( "1200-540=660 \n" ); document.write( "there are 660 girls \n" ); document.write( " |