### Over 200 Tons of Oil Leaked -- How Much Over 200?

The following was reported by the Associated Press on 21 January 2007.

```   "LONDON - A damaged ship grounded off the English coast
leaked more than 200 tons of oil [...]."

"Britain's Department for Transport said more than 200 containers
from the ship, which was listing at a 30-degree angle, had slid
into the sea [...]."

"Some of the ship's approximately 3,000 tons of diesel and other
fuel had leaked out through a crack in the vessel's port side [...].

"About 220 tons of oil has been lost [...]."
```
##### Exercises
1. Draw a picture of a `30-degree` angle.

2. The ship lost about `________%` of its "diesel and other fuel."

3. In this case, the word over and the phrase more than imply `________%`.

##### More... Unit of Measurement: toe

When measuring oil, GDT usually thinks in units of gallons instead of tons which prompts the question: How many gallons of oil are in a ton? It turns out GDT's question is non-trivial.

The following was copied from "How Many? A Dictionary of Units of Measurement"© by Russ Rowlett and the University of North Carolina at Chapel Hill.

Toe is a "symbol for tonne of oil equivalent, a unit of energy used in the international energy industry. `1 toe` represents the energy available from burning `one tonne` (metric ton) of oil; this is defined to be exactly ``` 107 kilocalories```, equivalent to approximately `7.4 barrels` of oil, `1270 cubic meters` of natural gas, or `1.4 tonnes` of coal. `1 toe` is also equivalent to `41.868 gigajoules` (GJ), `39.683 million` Btu (MM Btu) or dekatherms, or `11.630 megawatt` hours (MWh)."