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2 years ago

over the next ten years, the world population will grow. how do experts expect the population of older adults to change?

1 answer:

3 0

Over the next ten years, the world population will grow. Experts expect that there will be more older people in the population rather than younger one.

Increases in a population's or a dispersed group's membership are referred to as population growth. Around 83 million people, or 1.1% of the world's population, are added every year. From 1 billion people in 1800 to 7.9 billion in 2020, the world's population has increased.

There are currently 703 million individuals who are 65 or older, and by 2050, that figure is expected to increase to 1.5 billion. The UN DESA Population Division's most recent population estimates and predictions indicate that by 2050, 1 in 6 of the world's population, up from 1 in 11 in 2019, will be over 65.

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3 years ago

A small square loop carries the current 32A. the on axis magnetic field strength 50 cm for the loop is 4.9 nT. What is the edge

4vir4ik [10]

Answer:

0.957mm

Explanation:

The on-axis magnetic field of a current loop(B_loop) is is 4.9 nT

B_loop = (2μAI) / (4πz^3).

Where z is defied as distance from the current carrying loop,

A is the total enclosed area of the loop,

I is the current,

μ is the permeability constant (4π*10^-7).

4.9 nT = (2* 4π*10^-7 *A *32A) / (4π* (50cm)^3)

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3 years ago

Use the midpoint method to calculate the price elasticity of demand for potato chips that increased in price from $2.00 to $3.00

fiasKO [112]

Answer:

$e_p$ ≅ -1.7.

Explanation:

Let's calculate the change in quantity:

$\frac{Q_2 - Q_1}{\frac{Q_2+Q_1}{2} } = \frac{50-100}{\frac{50+100}{2} } = (approx.) -0.67.$

Let's now calculate the change in price:

$\frac{P_2 - QP_1}{\frac{P_2+P_1}{2} } = \frac{3.00-2.00}{\frac{3.00+2.00}{2} } = 0.40.$

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Which choice offers the most logical conclusion about literacy rates in Kenya and Sudan?

Shkiper50 [21]

Here is the full excerpt for this question
<span>From 2003 to 2008, literacy rates in Sudan averaged 85% for male students and 71% for female students. In Kenya, the literacy rate for males was 80% and 81% for females.
-- UNICEF, United Nations Population Division and United Nations Statistics Division.
Which choice offers the most logical conclusion about literacy rates in Kenya and Sudan?
A)The Sudanese educational system has been more successful in educating the youth of the nation.
B)Literacy rates in Kenya are lower due to the nation's on-going civil wars and ethnic conflicts.
C)Female students in Kenya have greater access to educational opportunities than female students in Sudan.
D)Female students in Sudan have greater access to educational opportunities than female students in Kenya.

I believe the answer is </span>C)Female students in Kenya have greater access to educational opportunities than female students in Sudan.

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