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aleksley [76]
3 years ago
9

suppose a city with a population of 400,000 had been growing at a rate of 4% per year. if this rate continues,fine the populatio

n of this city in 13 years
Mathematics
2 answers:
ratelena [41]3 years ago
5 0
608,000

Because if you take 4 percent and convert it to a decimal and multiply it by 13 it will get you the decimal that could be multiplied by 400,000 to get the amount that would be grown in 13 years. You would then have to add that amount to 400,000 to get your answer

.04 x 13 = .52

.52 x 400,00=208,000

208,000 is how many people the city has grown in 13 years but then you have to add that to the previous amount

208,000 + 400,000= 608,000



Vikentia [17]3 years ago
4 0

Answer:

man i dont know

Step-by-step explanation:

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Y_Kistochka [10]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find an equivalent ratio in simplest terms: 25:75
Sati [7]

Answer:

1:3

Step-by-step explanation:

Both numbers are divisible by 25:

  • 25 ÷ 25 = 1
  • 75 ÷ 25 = 3

∴ The simplified ratio is 1:3

Hope this helps!

5 0
3 years ago
What is the difference between the greatest and least amounts of rainfall? 2-1/8= inches?
OleMash [197]

Answer:

D =1\frac{7}{8}

Step-by-step explanation:

Given

See attachment

Required

Determine the difference between greatest and least amount

From the attachment, we have:

Greatest = 2

Least = \frac{1}{8}

The difference (D) is:

D = Greatest - Least

D = 2 - \frac{1}{8}

Take L,C,M

D =\frac{16 - 1}{8}

D =\frac{15}{8}

Convert to mixed number

D =1\frac{7}{8}

6 0
3 years ago
What number must add to the expression below to complete the square x^2-x
kifflom [539]

Answer:

Option D is correct.

1/4 completes the square.

Step-by-step explanation:

To complete the square for a quadratic function, we require a third term that will enable the solutions of the quadrstic equation to be 2 repeated roots.

For that to be so for the quadratic equation

ax² + bx + c = 0,

b² has to be equal to 4ac

For this question, x² - x + c

From b² = 4ac

c = (b²/4a)

a = 1

b = -1, b² = 1

c = ?

c = (1/4)

Hence, (1/4) is the number that must be added to the expression to complete the square.

Hope this Helps!!!

6 0
3 years ago
What is the center and radius of the following circle (x - 5) ^ 2 + (y + 2) ^ 2 = 16
murzikaleks [220]

Answer:

Step-by-step explanation:

if center=(h,k)

radius=r

eq. of circle is (x-h)^2+(y-k)^2=r^2

given eq. is (x-5)^2+(y+2)^2=16=4^2

comparing

center =(5,-2)

radius r=4

4 0
3 years ago
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