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Katen [24]
3 years ago
10

In​ 2006, the population of the country was 30.4 million. This represented an increase in population of 7.6 % since 2001. What w

as the population of the country in​ 2001? Round to the nearest hundredth of a million.
Mathematics
1 answer:
Molodets [167]3 years ago
6 0

Answer:

28.25 million

Step-by-step explanation:

Population of the country:

  • in 2001 - x million
  • in 2006 - 30.4 million

Population of the country as percent:

  • in 2001 - 100%
  • in 2006 - 100% + 7.6% = 107.6%

Write a proportion:

\dfrac{x}{30.4}=\dfrac{100}{107.6}

Cross multiply:

107.6\cdot x=30.4\cdot 100

Divide by 107.6:

x=\dfrac{30.4\cdot 100}{107.6}=\dfrac{3,040}{107.6}\approx 28.25

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Answer:

For question 1 it's B

For question 2 it's C

Step-by-step explanation:

<u>For question 1, you have to apply the "Triangle Inequality Theorem"</u>

A+B > C

B+C > A

A+C > B

Let's say that A=22, B=17, C= 14

22+17 > 14       True

17+14 > 22       True

22+14 > 17       True

Therefore, the answer is B

<u>For question 2, you apply the rule of the sum of the triangles which is 180°</u>

70+70+? = 180

140+? = 180

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Yanka [14]

Answer:

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If y = f(x), y = f(x) + k is a translation k units up if k > 0 and is a translation k units down if k < 0

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