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mezya [45]
3 years ago
5

4/5-7/9+1/5 simplify the expression

Mathematics
1 answer:
Olin [163]3 years ago
8 0
.75-.66r-.25 
that should be it
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During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula
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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%

Learn More

Percent increase: brainly.com/question/13882170

Keywords : population, birds, island,increase

#LearnwithBrainly

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3 years ago
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Answer:

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Step-by-step explanation:

3 0
2 years ago
Find a. Round to the nearest tenth
Drupady [299]

Answer:

a = 2.14cm to the nearest 10th =2.1

Step-by-step explanation:

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3 years ago
Which one of the following is an irrational number?
kondaur [170]

Answer:

sqrt(10)

Step-by-step explanation:

Since the second number ends and does not continue it wouldn't be the second one, and since the third is able to be predicted it wouldn't be the thrid one either and since the fourth one is 7 and is a whole number the only answer choice possible would be the first one.

7 0
3 years ago
Miles is planning to spend 2/3 as many hrs bicycling this week as he did last week. Is Miles going to spend more hrs or fewer hr
vladimir2022 [97]
He would be spending less time because  2/3 is not a full number. Let's make an equation out of the: 2/3(m). Note: 3(2) means 3 times 2 and the m is the amount of miles biked last week. We could insert the number 3 to our equation. 2/3(3). Now if you do it the proper way, it is 2/3(3/1) and if you do the math it is 6/3 aka 2. And 2 is less than 3. So it is less time spent
5 0
3 years ago
Read 2 more answers
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