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# An oceanographic research ship

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An oceanographic research ship's submersible vehicle is at a depth of 1583 meters when it begins a steady ascent. If it rises at a rate of 68 meters per minute, how many minutes will it take the submersible to reach a depth of 631 meters?

(show work)

Mathrules  Jul 2, 2018
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If it takes 68 meters per minute for the ship's ascent, the question is asking us to find how many minutes it will take reach 631 meters.

First, the ship is at a depth of 1583 meters, so to reach 631 meters, it has to go: $$1583-631=952$$ meters.

We also have our proportion: 68 meters every 1 minute, so 952 meters in $$\frac{952}{68}=\boxed{14}$$ minutes.

tertre  Jul 2, 2018