a processing machine crushes 3 1/4 kilograms of dried fruits in 3/4 minute. what is the rate, in kilograms per minute at whcih the machine crushes dried fruits?
A. 3/13
B. 16/39
C. 2 7/16
D. 4 1/3
The rate at which the machine crushes dried fruits can be calculated by dividing the amount of dried fruits crushed (3 1/4 kilograms) by the time taken to crush them (3/4 minute).
Rate = (3 1/4) / (3/4)
Rate = (13/4) / (3/4)
Rate = 13/4 * 4/3
Rate = 13 / 3
Rate = 4 1/3
Therefore, the rate at which the machine crushes dried fruits is 4 1/3 kilograms per minute. The correct answer is D. 4 1/3.