45/2 or 22 1/2
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Answer: In 10 hours, 4000 bacteria will be present.
Step-by-step explanation:
Given that 2000 bacteria grew to 2400 in 2 hours,
growth/ increase rate = 2400 - 2000
= 400 bacteria increase in 2 hours
Per hour is therefore 400/2 = 200 bacteria increase per hour
If the bacteria increases by 200 per hour
If 200 = 1 hour
X = 10 hours
We cross multiply:
X = 200 x 10
X = 2000
Therefore, a culture with 2000 bacteria at the same growth rate will have increased by additional 2000 in 10 hours
So, after 10 hours, number of bacteria will be 2000 + 2000 = 4000 bacteria
Answer:
B
Step-by-step explanation:
51÷3=17
17 miles per gallon
Looking through the table, the rainfall (in inches) goes down by 00.53 inches.
Therefore, you could say that,
"The average rate of change is 00.53. This means that each year the amount of rainfall in inches goes down by 00.53."
