Question

A medical researcher has two petri dishes containing viruses. Dish A has a population density of 1.2 viruses per square millimeter. Dish A has an area of about 2,826 square millimeters. If both petri dishes have the same population density, approximately how many viruses are in Dish A? 2,355 viruses 3,391 viruses 23,550 viruses 33,912 viruses

Answer 1

The answer is B!

Explanation:

Answer 2

Total population in dish A will be given by:
Population=(Population density)×(Area of the dish)
Population density=1.2 viruses per square millimeter
Area=2826 square millimeter
thus:
Population=1.2×2826=3391.2
Thus the number of viruses will be 3391