Can you help me please, I’ve tried number 1, but something felt off and if numbe
ID: 289405 • Letter: C
Question
Can you help me please, I’ve tried number 1, but something felt off and if number 1 isn’t right number 2 wouldn’t be right either. Please help me thank you have encotinterena a CaSS. TABLE 15.1 Growth Rates and Doubling Times GROWTH RATE DOUBLING TIME GROWTH RATE PERCENT PER UNIT TIME) 0.1 0.5 DOUBLING TIME (NUMBER OF TIME UNITS) 700 140 70 35 23 PERCENT PER UNIT TIME) 4 (NUMBER OF TIME UNITS) 18 14 10 20 3.5 Calculated using the Rule of 70 (based on unit time). For example, if the unit time is one second (minute, hour, year), for a growth rate take 70 seconds (minutes, hours, years) for the quantity to double QUESTIONS If a certain virus has a doubling time of 5 minutes, how long would it take to double the amount of the virus? 1. Following the 2010 census, a community had an annual population increase of 15%. At that growth rate, how much time will it take for its population to double, assuming no other changes?
Explanation / Answer
1. doubling time is the period of time required for a quantity to double in size or value.
Thus if the doubling time is 5 minutes then it would take 5 minutes to double the amount of virus.
2. Given 2010 cennsus is based on Rule 70
Given it increase 15% in one year Thus T= 70/R
Thus T = 70/ 15 = 4.67 years.