18/6
18= the number of trucks
6= the number of hours
18/6= 3 trucks per hour
The number of viruses was 4000 times greater than number of protozoa.
Step-by-step explanation:
Given,
Number of protozoa = 
Number of viruses = 
Let,
x be the number of times number of viruses is greater than number of protozoa.
Number of viruses = Number of time * Number of protozoa

Dividing both sides by 

The number of viruses was 4000 times greater than number of protozoa.
Keywords: division, scientific notation
Learn more about division at:
#LearnwithBrainly
Answer:
<h2>1/3 = 5/15 and 1/5 = 3/15</h2>
Step-by-step explanation:

Answer:
V≈75.4
Step-by-step explanation:
V=πr^2h/3
v=3.14(3)^2(8)/3=75.4