document.write( "Question 181270: A baby weighs 9 pounds at birth and weighs 15 pounds six months later. Find the percentage increase in weight \n" ); document.write( "
Algebra.Com's Answer #135934 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!
The increase is 15-9=6
\n" ); document.write( ":
\n" ); document.write( "so you divide the increase by the original weight to get the percentage of increase
\n" ); document.write( ":
\n" ); document.write( "6/9=.6667(100)=66.67% increase
\n" ); document.write( ":
\n" ); document.write( "It is quite common to make the mistake of dividing the entire new weight by the original weight, but we are looking for the percentage INCREASE here.
\n" ); document.write( "
\n" );