Answer :
Let find how many do not like hot chocolate.
.20*75 = 15 fourth graders don't like hot chocolate.
Now lets see how many like hot chocolate
75 -15 = 60 kids like hot chocolate.
Another way to do this is you know that 20% of kids don't like hot chocolate then that means 80% must like hot chocolate.
So now you just have to do .8*75 and you get 60
.20*75 = 15 fourth graders don't like hot chocolate.
Now lets see how many like hot chocolate
75 -15 = 60 kids like hot chocolate.
Another way to do this is you know that 20% of kids don't like hot chocolate then that means 80% must like hot chocolate.
So now you just have to do .8*75 and you get 60
[tex]20\%\ do\ not\ like\ hot\ chocolate,\ therefore\\100\%-20\%=80\%\ like\ hot\ chocolate\\\\p\%=\frac{p}{100}\to80\%=\frac{80}{100}=\frac{8}{10}=\frac{4}{5}\\\\80\%\ of\ 75=\frac{4}{5}\cdot75=4\cdot15=\boxed{60}\leftarrow answer[/tex]
