Bruce has a 16 ounces bottle of water that is 1/2 full. He drinks 1/5 of the water left in the bottle. How many ounces of water are left in the bottle

6.4 oz are left

6.4 oz are left.

Step-by-step explanation:

Start with the bottle being half full.

A bottle that is half full when it started with 16 oz is 1/2 16 oz = 8 oz

If he drinks 1/5 of the remaining amount, it means that he has 4/5 left.

4/5 * 8 = 32/5 = 6.4 oz or 6 oz and 2/5 of an ounce.