Plastic pellets are added to a storage bin at 75 kg/h

MATHEMATICS · Single correct · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

Plastic pellets are added to a storage bin at 75 kg/h. Pellets are simultaneously removed at a rate of 0.10

B

kg/h, where

B(t)

is the quantity of pellets in the bin (in kg) at time

t

hours. When

B=500

kg, what is

\dfrac{dB}{dt}

? (a)

-25\text{ kg/h}

(b)

50\text{ kg/h}

(c)

25\text{ kg/h}

(d)

-50\text{ kg/h}