The percent increase of the second year was 85.71%
Step-by-step explanation:
The exponential growth formula is y=a(1+r)^x
where;
y=population after x years
a=original population
r=growth rate as a decimal
x=number of time interval that have passed
Let starting population be p
The first year increase in the population was 40% this means;
r=0.4 , x=1 and a=p thus the equation will be
y=p(1+0.4)^1 ⇒⇒y=1.4 p
In the second year the population of birds of an island became 7 times more than before which is 7p
7p= 7*1.4p= 9.8p
Increase will be;
9.8p-1.4p=8.4
% increase will be;
8.4/9.8 *100 =85.71%
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Percent increase: brainly.com/question/13882170
Keywords : population, birds, island,increase
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Answer:
C. y = 2/3x - 2
Step-by-step explanation:
we already have both the y-intercept (b) and the slope (m)
so all we have to do is put it in the slope-intercept form or y=mx+b
y = 2/3x - 2
First, we add the numbers. This gives us 715.
Then, we divide it by the amount of numbers. This gives us. 715 divided by 11.
This simplifies to 65.
Answer:
x=90.
Step by step explanation:
To solve the expression 
, and obtaining a value for x we can do the following:
- Add 1 both sides of the equation. This will result in
⇒
. - Multiply both sides by 6, which yields
. This results in 
.
