Asked by Spike

A submarine was floating on the water. It went under the water at a rate of 0.5m/second for 3 minutes. It then started to rise towards the surface at a rate of 0.7m/second for 1.5 minutes. What is the depth of the submarine?

The hint my teacher gave me was: make sure your working in minutes or seconds. Also draw a picture or use logic.
Answered by Ms. Sue
Have you drawn the picture?

How far have you gotten in solving this problem?
Answered by Spike
I tried drawing the picture and I have tried solving the problem but obviously I cant figure it out and that's why im asking for help :/
Answered by Ms. Sue
It went under the water at a rate of 0.5m/second for 3 minutes.

<b>0.5 * 180 = 90 meters in 3 minutes</b>

It then started to rise towards the surface at a rate of 0.7m/second for 1.5 minutes.

<b>0.7 * 90 = 63 meters in 1.5 minutes</b>

What is the depth of the submarine?

<b>90 - 63 = 27 meters</b>


Answered by Rylee
Ms.Sue is right

I would agree with her! :)
Answered by Spike
Oh thank you so much Ms. Sue and sorry for being a little rude :)
Answered by Ms. Sue
You're very welcome, Spike. :-)
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