## Textbook page 70. Question #18

**18.**

__One ninth__of the__height__of an iceberg was__above the surface__of the water. The iceberg extended to a__depth of 75.8 m__below the surface. What was the__height of the iceberg above the surface__? Express your answer to the__nearest tenth of a metre__.75.8 is

__8__of the iceberg, so we have to find

__1__of the iceberg that's above the water.

9 9

Divide 75.8 by 8. Whatever the answer is, that is the rest of the iceberg. This is because we don't know what the

__1__is but if we divide we get

__1__of the iceberg and that is how much is missing.

9 9

### Picture:

Now you know that 9.475 is the

__1__so now you have to round it to the nearest tenth. That would 9.5.

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