a medical researcher has two petri dishes containing viruses. dish b has a population density of 1.2 viruses…

a medical researcher has two petri dishes containing viruses. dish b 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?\n2,355 viruses\n3,391 viruses\n23,550 viruses\n33,912 viruses

a medical researcher has two petri dishes containing viruses. dish b 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?\n2,355 viruses\n3,391 viruses\n23,550 viruses\n33,912 viruses

Answer

Explanation:

Step1: Recall density - number relationship

The formula for population density $d=\frac{n}{A}$, where $d$ is density, $n$ is the number of viruses, and $A$ is the area. We want to find $n$, so we can re - arrange the formula to $n = d\times A$.

Step2: Substitute given values

We know that $d = 1.2$ viruses per square millimeter and $A=2826$ square millimeters. Then $n=1.2\times2826$. $n = 1.2\times2826=3391.2\approx3391$ viruses.

Answer:

B. 3,391 viruses