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ANEK [815]
3 years ago
7

Type in only your numerical answer to the following problem; do not type any words or letters with your answer. The population o

f Neverland was 2.3 billion, one hundred years ago. Currently, the population is 3.2 billion. What will this population be 100 years from now? NOTE: Round to the nearest tenth of a billion.
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

4.5 billion

Step-by-step explanation:

2.3(1+x/100)=3.2

1+x/100=3.2/2.3

x/100=32/23-1

x/100=0.39130434782

x=0.39130434782(100)

x=39.1304347826

3.2(1.39130434782)

4.45217391302

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A string is cut into two pieces in the ratio 2 : 7. The difference between the lengths of the two pieces is 90cm. Find the lengt
Nataly_w [17]

Answer:the length of the shorter string= 36cm

Step-by-step explanation:

Let us assume the lengths are 2x and 7x  since thery are in the ratio of 2 :7

 Such that Length of the shorter string = 2x

and the longer string = 7x  so that  the difference in Length which is 90cm can be expressed as

7x- 2x= 90

5x= 90

x 90/5

x= 18

shorter string = 2 x = 2x 18= 36cm

Longer strring = 7x 18=126cm  

       

5 0
3 years ago
Find a solution to the linear equation −2x−2y=8 by filling in the boxes with a valid value of x and y.Provide your answer below:
inna [77]

Given

-2x-2y=8

To find a solution for the linear equation, the first step is to write the equation in slope-intercept form:

-Pass the x-term to the right side of the equation by applying the opposite operation to both sides of the equal sign:

\begin{gathered} -2x+2x-2y=8+2x \\ -2y=2x+8 \end{gathered}

-Divide both sides by -2:

\begin{gathered} \frac{-2y}{-2}=\frac{2x}{-2}+\frac{8}{-2} \\ y=-x-4 \end{gathered}

Once you have expressed the equation of the line in slope-intercept form, replace it with any value for x and calculate the corresponding value of y, for example, x=2

\begin{gathered} y=-(2)-4 \\ y=-2-4 \\ y=-6 \end{gathered}

One solution for the linear equation is x=2 and y=-6, you can check the solution by replacing the values on the original equation, with both values the result should be 8:

\begin{gathered} -2x-2y \\ -2\cdot2-2\cdot(-6) \\ -4+12=8 \end{gathered}

As you can see the values are a valid solution for the linear equation.

So the solution is:

-2(2)-2(-6)=8

6 0
1 year ago
13 NEED HELP ASAP WILL GIVE BRAINLY
attashe74 [19]

Answer:

A. Similar; congruent angles

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Sheryl's mean average on eight exams is 92.000. Find the sum of her scores.
storchak [24]
D) 736

8 exams = 92.000
(8)x/8 = 92.000(8)
x = 736

736
7 0
3 years ago
9 yd<br> 9 yd<br> 5 yd<br> 3 yd<br> Perimeter:<br> Area:
Kipish [7]

Area:66 Perimeter:36

Step-by-step explanation:

Perimeter: 9+9+5+3+4+6: 36

as 9-5 is 3

and 9-3 is 6

Area: 9*6 +3*4: 66

5 0
2 years ago
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