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Flauer [41]
3 years ago
9

The population of a country has been decreasing for several decades. In​ 1990, the population was about 165 million people. In​

2010, the population was about 158 million people. Determine the percent decrease in the​ country's population during this time period.
Mathematics
1 answer:
Lorico [155]3 years ago
8 0

To find percent decrease and increase you must subtract the original value (old value) with the new value. Then divide the value you get by the original value and multiply by 100:

165-158 = 7

7÷ 165 × 100 = 4.2424....% or 4.2% rounded to 2 significant figures.

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You collect 140 total pieces of candy trick or treating and 35 of them are m&m's. What fraction of the candy is not m&m'
tekilochka [14]

\frac{3}{4} of the candy is not m&m's.

Step-by-step explanation:

Given,

Total pieces of candy = 140

Number of m&m's = 35

Fraction = \frac{Number\ of\ m&m}{Total\ pieces\ of\ candy}

Fraction = \frac{35}{140}

Both 35 and 140 are multiples of 7, therefore,

Fraction of m&m's = \frac{5}{20} = \frac{1}{4}

As the number of m&m's fraction and not m&m's fraction will make a total of 1, therefore

fraction of m&m's + fraction of not m&m's = 1

fraction of not m&m's = 1 - fraction of m&m's

fraction of not m&m's = 1-\frac{1}{4}=\frac{4-1}{4}

fraction of not m&m's = \frac{3}{4}

\frac{3}{4} of the candy is not m&m's.

Keywords: fraction, subtraction

Learn more about fractions at:

  • brainly.com/question/8929610
  • brainly.com/question/8908016

#LearnwithBrainly

7 0
3 years ago
On 8(x - 2) + 3 = -61?
DochEvi [55]

Answer:

Hey there!

8(x-2)+3=-61

8(x-2)=-64

x-2=-8

x=-6

Let  me know if this helps :)

3 0
3 years ago
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NO WRONG ANSWERS Two customers took out car loans from a bank. Marcus took out a 5-year loan for $10,000 and paid 4.7% annual si
Gennadij [26K]

Answer:

2164 dollars

Step-by-step explanation:

8 0
3 years ago
Octavia buys a pair of jeans for $20.50 plus 8% tax.
dezoksy [38]

Answer:

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Step-by-step explanation:

$22.14 for the jeans

$34.56 for the jacket

$56.7 all together

Take your tax and move the decimal over to the left by 2 spaces

8. becomes .08

take .08 and multiply it by the price so

20.50 x .08= 1.64

and

32 x .08=2.56

the number you get is how much the tax is, $1.64 is 8% of $20.15

take that number and add it to your price

$1.64+$20.50= $22.14

5 0
3 years ago
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Simplify and give the answer in standard form: (3/8+5/12) ÷ (8/-15 x 27/16)
lina2011 [118]
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