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2 years ago

10

the population of a town today is 50000 people if the population decreased by 5% a year what will the towns population be in 10

years

1 answer:

kramer2 years ago

5 0

The population of the town in 10 years would be 29,937.

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0.2^x= 25 <br> Solve to find x<br> Show steps

liq [111]

$0.2=\frac{2}{10}=\frac{1}{5}=5^{-1}\ \ \ |used\ a^{-1}=\frac{1}{a}\ for\ a\neq0\\\\25=5^2\\\\therefore\\\\0.2^x=25\to(5^{-1})^x=5^2\ \ \ |use\ (a^n)^m=a^{n\cdot m}\\\\5^{-1(x)}=5^2\\\\5^{-x}=5^2\iff-x=2\to\boxed{x=-2}\\\\check:\\\\0.2^x=0.2^{-2}=\left(\frac{1}{5}\right)^{-2}=5^2=25\ O.K.\ :)$

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3 years ago

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(-7) + b = (-11)<br><br> What is the answer?

Yanka [14]

The answer to the given expression (-7) + b = (-11) is -4

<h3>How to solve an expression</h3><h3 />

(-7) + b = (-11) = -4

Removing the bracket

-7 + b = - 11

Collecting like terms

b = -11 + 7

b = -4

Learn more about evaluating expression:

brainly.com/question/4344214

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1 year ago

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Find the commission.<br> Earning Commission<br> Sales Commision Rate Commission<br> $720<br> 7%?

aniked [119]

Answer:

$50.4

Step-by-step explanation:

The Commission is $50.4 of the sale.

7% of 720 = 50.4

7 0

2 years ago

Find the area of the triangle.<br> A) 78 m2 <br> B) 175 m2 <br> C) 196 m2 <br> D) 350 m2

Tatiana [17]

Answer:

175 (b)

Step-by-step explanation:

25*14=350

350/2=175

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2 years ago

Find the length of the third side. If necessary, write in simplest radical form.

Aloiza [94]

Answer:

$\sqrt{13}$

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

The square on the hypotenuse h is equal to the sum of the squares on the other 2 sides, that is

h² = 2² + 3² = 4 + 9 = 13 ( take square root of both sides )

h = $\sqrt{13}$

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2 years ago