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Kruka [31]
3 years ago
9

Over time, the number of organisms in a population increases exponentially. The table below shows the approximate number of

Mathematics
2 answers:
Sphinxa [80]3 years ago
6 0

Answer:

We write the generic form equation:

 y = A (b) ^ t

 We must use two points in the table to find the constants A and b

 We have then:

 For: t = 1, y = 55

 55 = A (b)

 For: t = 2, y = 60

 60 = A (b) ^ 2

 We solve the system of equations:

 We divide both equations:

 (60 = A (b) ^ 2) / (55 = A (b))

 ((60) / (55)) = b

 b = 1.091

 We substitute in any of the equations:

 55 = A (b)

 55 = A (1,091)

 A = (55) / (1,091)

 A = 50.41 

 The equation that models the problem is:

 y = 50.41 * (1.09) ^ t

 For t = 29 we have:

 y = 613.5996987 (> 600)

 Answer:

 Assuming the trend continues the environment will not last until the population after 24 years.

 Answer:

  24

vlada-n [284]3 years ago
5 0

Answer:

24

Step-by-step explanation:

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Since there is 12 people that need to chip in each, you would divide that total by 12.
240.96/12 = $20.08 each person would have to pay
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3 0
3 years ago
A store is having a sale on trail mix and jelly beans. For 7 pounds of trail mix and 9 pounds of jelly beans, the total cost is
Vlad [161]

Answer:

The cost for each pound of trail mix is $ 1.75 and each pound of jelly beans is $ 2.75.

Step-by-step explanation:

Let each pound of trail mix cost x dollars and each pound of jelly beans cost y dollars.

Given:

7 pounds of trail mix and 9 pounds of jelly beans cost $ 37.

So, 7x+9y=37--------------- 1

Also, 5 pounds of trail mix and 3 pounds of jelly beans cost $ 17.

So, 5x +3y=17--------------- 2

Multiplying equation 2 by -3, we get

(5x +3y=17)\times -3\\-15x-9y=-51-------- 3

Now, adding equations 1 and 3, we get

7x+9y-15x-9y=37-51\\7x-15x=-14\\-8x=-14\\x=\frac{-14}{-8}=\$1.75

Now, plug in x=1.75 in equation 1 and solve for y.

7(1.75)+9y=37\\12.25+9y=37\\9y=37-12.25\\9y=24.75\\y=\frac{24.75}{9}\\ y=\$2.75

Therefore, the cost for each pound of trail mix is $ 1.75 and each pound of jelly beans is $ 2.75.

7 0
3 years ago
What are situations that can cut into retirement funds?
sladkih [1.3K]
The situations that can cut into retirement funds are <span>accidents, tax liabilities, health needs and Social Security not being properly funded. These are options that can be detrimental to creating a good retirement fund. I hope that this is the answer that has actually come to your desired help.</span>
6 0
3 years ago
Read 2 more answers
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e-lub [12.9K]

2b + 9x +(2 + 5).  

2b + 9x + 7=2b + 9x + 7

4 0
3 years ago
Simplify the expression:<br> -5(2x - 5)
OverLord2011 [107]

Answer:

<u>-10x+25</u>

<em>Step-by-step explanation:</em>

−5(2x−5)

=(−5)(2x+−5)

=(−5)(2x)+(−5)(−5)

<u>=−10x+25</u>

6 0
2 years ago
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