AM-1915

Connected rates of change

A Math · Secondary 4 · Medium · Connected rates of change

The variables

P

and

A

are related by

PA = 600

, where

P

is pressure in pascals and

A

is area in cm

^2

. Find

\dfrac{dA}{dP}

when

P = 150

.

$-\dfrac{2}{75}$ cm $^2$ Pa $^{-1}$
$\dfrac{2}{75}$ cm $^2$ Pa $^{-1}$
$-\dfrac{1}{75}$ cm $^2$ Pa $^{-1}$
$-\dfrac{1}{150}$ cm $^2$ Pa $^{-1}$

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