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[elliottjohnson]

I know some people love doing math early in the morning so could some one please answer before I leave at 6.45AM.


A wine glass is shaped so that the depth of the liquid in it is y cm, the volume of the liquid is given by V = 1/5 *y^4 cm^3. At what rate is the level rising when the depth is 4cm?

I have got dy/dt = dy/dv*dv/dt
but cant find dv/dt???

any suggestions



thanks heaps, ive got a math ext assessment today.

 

[elliottjohnson]

I think i got it is the answer 0.5976 => 0.6

 

[random-1005]

I know some people love doing math early in the morning so could some one please answer before I leave at 6.45AM.


A wine glass is shaped so that the depth of the liquid in it is y cm, the volume of the liquid is given by V = 1/5 *y^4 cm^3. At what rate is the level rising when the depth is 4cm?

I have got dy/dt = dy/dv*dv/dt
but cant find dv/dt???

any suggestions



thanks heaps, ive got a math ext assessment today.

this question is not possible to answer without more information