Posted by **Jessica** on Thursday, February 26, 2009 at 1:41am.

A school has eleven Year 9 Maths classes of 27 students. Each class has 4 extra students added to it. Find the total number of students studying Year 9 Maths.

- Maths -
**Jessica**, Thursday, February 26, 2009 at 1:43am
A diving bell is lowered to a depth of -124 metres, i.e 124 metres below sea level. If it rises 38 metres and then drops a further 65 metres from this point what is its new depth?

- Maths -
**drwls**, Thursday, February 26, 2009 at 1:54am
You really need to try these yourself. Think about what the problem says and do the required calculation. Show your work and someone will help you.

Please do not add second questions to the same post. Start a new one.

- Maths -
**Tiredmom1978**, Thursday, February 26, 2009 at 11:28am
-124meters+38meters-65meters= is the process you need to do to get the new depth.

hint on answer = -1_1 find the middle number to get the total depth.

- Maths -
**drwls**, Thursday, February 26, 2009 at 3:33pm
-124 + 38 - 65 = -151, which means 151 meters below sea level

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