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maths question

hey all was wondering if anyone could help me with this maths question

Point A lies on the abyssal plain of an ocean basin at adepth, D, 3500 metres below sea level and 500km from the mid ocean ridge whereit formed
Calculate age, t, of the ocean floor at point A using theequation and calculate the mean half spreading rate in mm per year.
Equation- d =2500 + 350 t 1/2

thanks:smile:
Original post by ***OpenSky***
hey all was wondering if anyone could help me with this maths question

Point A lies on the abyssal plain of an ocean basin at adepth, D, 3500 metres below sea level and 500km from the mid ocean ridge whereit formed
Calculate age, t, of the ocean floor at point A using theequation and calculate the mean half spreading rate in mm per year.
Equation- d =2500 + 350 t 1/2

thanks:smile:


Is that t^0.5? Do you know how to rearrange this equation to get it in the form t=...?
yes it is. and no not really :/
Original post by ***OpenSky***
yes it is. and no not really :/


Okay, well there are two parts of this question. The first part is to rearrange this equation into the form t=... because we need to find the value of t when D=3500. So we have D=2500+350tD=2500+350\sqrt{t} (because taking something to the power of 0.5 is the same as square rooting it). What do you think the first step might be?

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