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3 years ago

175% as a fraction or a mixed number

Mathematics

1 answer:

Dominik [7]3 years ago

5 0

As a fraction it would be 175/100, as a mixed number it would be 1 75/100, simplified it would be 1 3/4

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Which of these cylinders has the same volume as one with a radius of 4 ft and a height of 9 ft?

enyata [817]

Answer:

Step-by-step explanation:

V=π4²×9=144π

for B

V=π3²×16=144π

5 0

3 years ago

Pls help i will give brainly!!!

Hatshy [7]

Answer:

Greatest population density: Denmark

Smallest population density: The U.S.

Step-by-step explanation:

Population density = population / area

So let's find the population density of each country

For U.S

Population: 272,648,000

Area: 9,364,520 sq km

Population density: 272,648,000/9,364,520=29.1 ( rounded to the nearest tenth )

So the population density of the U.S is 29.1 people per sq km

For Denmark

Population: 5,248,000

Area: 42,077

Population density: 5,248,000/42,077=124.7 ( rounded to the nearest tenth )

So the population density of Denmark is 124.7 people per sq km

For Ghana

Population: 18,339,000

Area: 237,533

Population density: 18,339,000/237,533=77.2 ( rounded to the nearest tenth ).

So the population density of Ghana is 77.2 people per sq km

Now that we have calculated the population density of each country let's look back at the question

Which country has the greatest population density? Which country has the least?

Looking at the population densities we can conclude that Denmark has the largest population density at 124.7 people per sq km and the U.S. has the smallest population density at 29.1 people per sq km

3 0

3 years ago

Read 2 more answers

550 is 12.5% of what number

lawyer [7]

<span>let us say we assume the number 550 is 100%- because the out put value of the task is two make sense.</span>

4 0

4 years ago

Someone solve these equations with working really appreciate it

nignag [31]

Answer:

a) $t = \sqrt{\frac{d}{4.9} }$

b) t = 0.3 seconds

c) d = 4.9t²

d) d = 11 cm.

Step-by-step explanation:

One test involves catching a 1 m ruler and measuring the distance, d in meters, that the ruler will travel before being caught, the reaction time t in seconds is then calculated using the formula

$t = \sqrt{\frac{2d}{9.8} }$ .......... (1)

a) the simplified expression is

$t = \sqrt{\frac{d}{4.9} }$ ......... (2)

b) If d = 44 cm = 0.44 meters, from equation (2) we get,

t = 0.299 seconds ≈ 0.3 seconds (Approximate)

c) If we make d as the subject of the equation, then

$t^{2} = \frac{d}{4.9}$

⇒ d = 4.9t² .......... (3)

d) Now, if $t = \frac{0.3}{2} = 0.15$ seconds, then from equation (3) we get,

d = 4.9 (0.15)² = 0.11 meters = 11 cm (Answer)

4 0

3 years ago

If x − 3 = 1, then what is the value of x² − 3x − 1 ?

Kruka [31]

Let's find x. This will allow us to find the value of the second expression.
x - 3 = 1
x = 4

Now, we can simply plug this x-value into the second expression to obtain 4^2 - 3(4) - 1 = 3.

Thus, our answer is 3.

7 0

3 years ago