Answer :

andres2003
3/10. Percent=for every 100.
if you say 3/10, add a zero to 10 and 3, so it would look ike 30/100. He drank 30% of the Milk.

Hope this helps
Porshia
Steps:
1. Do a proportion
3/10 times x/100
2. 3 times 100 is 300
3. 300 divided by 10 is 30
4. Your answer is
30%