3 years ago

The population of a town doubled in 5 years, then doubled again in the next 10 years. What is the percent of increase?

Mathematics

1 answer:

son4ous [18]3 years ago

5 0

D). 400% I hope this helps you with your answer

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Answers and work for answers please

larisa [96]

Answer:

1) 5 2) 6 3) 1.25 or -1.75

Step-by-step explanation:

1. x^2 - 25 = 0

x^2 - 25 = 0

First, add 25 to both sides!

x^2 = 25

Now square root both sides.

x = 5

2. (x-2)^2 = 16

First, square root both sides.

(x-2) = 4

Add 2 on both sides.

(x) = 6

x = 6

3. Quadratic Formula = -b ± $\sqrt{b^{2}-4ac }$ / 2a

Substitute in:

-6 ± $\sqrt{7^{2} -4(2)(6)}$ / 2(2)

-6± $\sqrt{49 - 48}$ / 4

Both forms:

-6 + $\sqrt{1}$ / 4

5 / 4 = 1.25

Negative:

-6 - 1 / 4

-7 / 4 = -1.75

8 0

2 years ago

Mind explaining anyone?

8090 [49]

Do 45/225 and simplify and that’s your answer

7 0

3 years ago

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For each ordered pair, determine whether it is a solution to 4x+5y=-13

Xelga [282]

Answer:

Step-by-step explanation:

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2 years ago

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Factor 21x^3 y^2 – 3x^2y + 75x^4

malfutka [58]

The greatest common factor is 3x². The rest doesn't factor.
21x³y² -3x²y +75x⁴ = 3x²(7xy² -y +25x²)

6 0

3 years ago

Ava swam for 154 minutes during her first week of vacation. In her two weeks of vacation, she swam for a total of 357 minutes. H

ioda

Answer:

203 more minutes

Step-by-step explanation:

357=x+154

Subtract 154 from both sides

x=203

Hope this helps

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3 years ago

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