Answer:
24.40
Step-by-step explanation:
divide this by 3, which gets you 6.10, or 1/4 of the total, then add that onto the 18.30 and boom
It will take 29.4 years for the population of Africa to be two times what it is today. This reflects: doubling time.
Doubling time is the time it takes for a particular amount of size or value to double at a given growth rate. By applying the 70 rules, we can find the doubling time of the exponentially increasing population. To do this, divide 70 by the growth rate (r).
Rule of 70 is a simplified way to determine the doubling time using the equation doubling time = 70 / r. Where r is the percentage growth rate of the population. For example, if the population of 10 species increases by 2 individuals per year, the r value will be 20%.
Learn more about doubling time here: brainly.com/question/16407547
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Answer:
x=−4/3 or x=−3/2
Step-by-step explanation:
Let's solve your equation step-by-step.
6x2+17x+12=0
Step 1: Factor left side of equation.
(3x+4)(2x+3)=0
Step 2: Set factors equal to 0.
3x+4=0 or 2x+3=0
x=−4/3 or x=−3/2
Answer:
Final Answer: 19%
Step-by-step explanation: I had the same question, I risked my life and got it wrong for you to get the answer