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koban [17]
3 years ago
15

Someone help me please and explain how you got your answer.

Mathematics
1 answer:
zimovet [89]3 years ago
3 0
*I'm not exactly sure what it means by compare the percents of change*

From 2000 to 2005, that's 5 years.
After 5 years, the population decreased from 4.3 mil to 3.2 mil; 3.2 - 4.3 = -1.1; that's a decrease of 1.1 mil.
1.1 mil out of 4.3 mil is approximately 26%.
So from 2000 to 2005, the population decreased by 26%.

From 2005 to 2010, that's also 5 years.
After that 5 years, the population increased from 3.2 mil to 5.6 mil; 5.6 - 3.2 = 2.4; that's an increase of 2.4 mil. 2.4 mil out of 3.2 is 75%.
So from 2005 to 2010, the population increased by 75%.
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Problem PageQuestion It takes an older pump twice as long to drain a certain pool as it does a newer pump. Working together, it
umka2103 [35]

Answer:

It will take 6 hours for the new pump to drain the pool.

Step-by-step explanation:

As the complete question is not given, the complete question is found online and is attached herewith

Let the rate of new pump is given as x=W/t_1

Let the rate of the old pump is given as y=W/t_2

it is given that the time t_2=2t_1

So by substituting the values of t_2 in the rate equation of y

y=W/2t_1

y=(W/t_1*2)=x/2

Also the total rate of both the pumps is given as W/t3 where t3 is given as 4 hours so the equation becomes

x+y=W/4

x+x/2=W/4

3x/2=W/4

As x=W/t_1

3W/2t_1=W/4

Now as W is same on both sides so

3/2t_1=1/4

12=2t_1

t_1=6 hours

So it will take 6 hours for the new pump to drain the pool.

7 0
3 years ago
Which of the following equations is equivalent to the equation 6x-y=1
kondaur [170]
A. 6x-y=1 can go to 6x-y-1=0 and then 6x-1 = y 
3 0
3 years ago
Read 2 more answers
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log( 96 ) - log( 8 ) =

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3 0
3 years ago
A what is an equation stating that two ratios or rates are equal
frozen [14]
The equation is
(A ≠ B)
A is the first number, ratio, rate, etc. , and B is the second.
The ≠ symbol means "does not equal", so the equation means:
[ Ratio A  is NOT equal to  Ratio B. ]



8 0
3 years ago
Solve pls brainliest
lukranit [14]

Answer:

The answer would be 49

Step-by-step explanation:

8(5) + 9

40 + 9

49

Hope this helps! Please mark as Brainliest!

8 0
3 years ago
Read 2 more answers
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