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miss Akunina [59]
2 years ago
8

An apartment building has 1500 residents. Every year 10% of the residents move out and no one new moves in. How many residents w

ill live there is 7 years?
Mathematics
1 answer:
maw [93]2 years ago
7 0

Answer:

717.44535

Step-by-step explanation:

P is the population in the beginning

r = population decrease per year = 10%

n = years = 7

P*(1-r/100)^n

1500(1-(0.10)^7

pioneermathematicscomFORMULAEFORPOPULATIONGROWTHandDECREASEformulaf779146html

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skelet666 [1.2K]
You have to divide denominator by numerator to find the constant of proportionality.
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3 years ago
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One-fifth of a number x is less than 8. Find the greatest possible prime number x.
GuDViN [60]
Hello there, I am unable to use the “less than” symbol. Sorry :( .

1/5x "less than" 8
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Prime number is 37,41.
Therefore x is 37.
8 0
2 years ago
Saul makes green paint by mixing blue paint and yellow paint.
Mamont248 [21]

Answer:

12 gallons of yellow paint

4 gallons of blue paint

Step-by-step explanation:

saul’s paint ratio is 3b to 1y which makes 4ounces of paint total (3b+1y=4)

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16/4=4 so 4 times the original recipe

Now multiply the original paint numbers by 4 since you will do the ratio 4 times

3y*4= 12 gallons of yellow paint and

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5 0
2 years ago
Which expressions are equivalent to Negative 9 (two-thirds x + 1)? Check all that apply.
Sav [38]

<u><em>Answer:</em></u>

<u><em /></u>-9(\frac{2}{3}x) + 9(1)\\  \\-6x + 9

<u><em>Explanation:</em></u>

<u>Before we begin, remember the following rules:</u>

<u>1- Distribution property:</u>

<u />a(b+c) = ab+ac

<u>2- Simplification of fractions:</u>

<u />\frac{xy}{yz}=\frac{x}{z}

<u>3- Signs in multiplication:</u>

+ve * +ve = +ve

-ve * -ve = +ve

+ve * -ve = -ve

<u>Now, for the given problem, we have:</u>

<u></u>9 (\frac{2}{3}x + 1)

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<u />-9 (\frac{2}{3}x +1) =  -9(\frac{2}{3}x) - (-9)(1) = -9(\frac{2}{3}x) + 9(1)

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<u>Now, we simplify the output from the above step:</u>

<u />-9(\frac{2}{3}x) + 9 = \frac{-9*2}{3}x + 9 = -6x+9

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Hope this helps :)

4 0
3 years ago
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Select the correct answer.
yaroslaw [1]

Answer:

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