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3 years ago

The population of a town is 20,000 and is decreasing at a rate of 5% per year. What is the population after 23 years?

1 answer:

6 0

I believe the answer should be approximately 6,147 because you would plug into the equation y=20,000(.95)^t, where t=23.

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The second side of a triangle is 4cm longer than the first, The third side is 1 less than twice the first, The perimeter is 55cm

lisov135 [29]

Answer:

13 , 17 and 25 cm.

Step-by-step explanation:

Let the length of the first side be x cm.

Then the second is x+4 and the third is 2x-1 cm long.

As the perimeter = 55 cm we have the equation:

x + x + 4 + 2x - 1 = 55

4x + 3 = 55

4x = 52

x = 13 cm.

7 0

3 years ago

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Solve the following:<br> a) 4x-1 / 2= x+7<br> b)<br> 3x + 2 = 2x + 13 /3

11Alexandr11 [23.1K]

Answer:

a) 2.5

b)2.33

Step-by-step explanation:

$4x-\frac{1}{2}= x+7$

Bring the numerals to the right hand side and the x terms to the left hand side

$4x-x=7+\frac{1}{2}$

Simplify

$3x=\frac{15}{2}$

Divide 3 on both sides, to get x

$x=\frac{5}{2} =2.5$

$3x+2=2x+\frac{13}{3}$

Bring the numerals to the right hand side and the x terms to the left hand side

$3x-2x=\frac{13}{3}-2$

Simplify

$x=\frac{7}{3} =2.33$

5 0

3 years ago

Plz help me I don’t understand this

Firlakuza [10]

The answer should be 31/10

3 0

3 years ago

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-Dominant- [34]

Answer:

Step-by-step explanation:

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3 years ago

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Dima020 [189]

Step-by-step explanation:

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3 years ago

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