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Lunna [17]
3 years ago
6

The groundhog population of​ Punxsutawny, Pennsylvania is closely monitored each year. Two years ago the population decreased by

​ 12%. Last year the number of groundhogs increased by​ 6%. This year the population also increased by​ 9%. What was the percentage​ increase/decrease of groundhogs over these three​ years? Round your answer to the nearest tenth of a percentage poin
Mathematics
1 answer:
kap26 [50]3 years ago
3 0

Answer:

There was a increase of 1.7% over these three​ years

Step-by-step explanation:

Multipliers:

For a decrease of a%, we multiply by: \frac{100-a}{100}

For a increase of a%, we multiply by: \frac{100+a}{100}

What was the percentage​ increase/decrease of groundhogs over these three​ years?

Decrease of 12%(multiplication by 0.88).

Increase of 6%(multiplication by 1.06).

Increase of 9%(multiplication by 1.09).

After these three years:

0.88*1.06*1.09 = 1.017

1.017 - 1 = 0.017

0.017*100% = 1.7%

There was a increase of 1.7% over these three​ years

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He will have 425/(1/2) = 425 x 2 = 850 plots.
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Can someone help me with these pls
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Answer:

subtract the area of the rectangle from the area of the triangle

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A rectangular flower garden in Samantha's backyard has 100 feet around its edge. The width of the garden is 20 feet.
Mrac [35]

Answer:

Step-by-step explanation:

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A student is solving the system of equations below. In which line is a mistake first made?
AlexFokin [52]

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line 1

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3 years ago
Andres Michael bought a new boat. He took out a loan for S24 320 at 45% interest for 2 years. He made a 54.110 partial payment a
AleksAgata [21]

Answer:

$25,381.94

Step-by-step explanation:

45% interest in 2 years = 45/24 = 1.875% monthly

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24,320

<u>Debt at month 1</u>

24,320*(1 + 0.001875) = 24,365.6

<u>Debt at month 2</u>

24,365.6*(1.001875) - 54.110 (partial payment) = 24,357.1755

<u>Debt at month 3</u>

24,357.1755*(1.001875)

<u>Debt at month 4</u>

24,357.1755*(1.001875)^2

<u>Debt at month 5</u>

24,357.1755*(1.001875)^3

<u>Debt at month 6</u>

24,357.1755*(1.001875)^4 - 3,410 (partial payment)

= 24,540.36874

<u>Debt at month 7</u>

24,540.36874*(1.001875)

<u>Debt at month 8</u>

24,540.36874*(1.001875)^2

<u>Debt at month 9</u>

24,540.36874*(1.001875)^3

<em>and so on</em> until month 24 (the maturity)

<u>Debt at maturity</u>

24,540.36874*(1.001875)^{18}

= 25,381.93916 = $25,381.94 rounded to the nearest hundreth.

8 0
3 years ago
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