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2 years ago

What does the surface of a calm lake have in common with a contour line?

Biology

2 answers:

viktelen [127]2 years ago

7 0

They are both straight, the calm lake is flat and straight, so is the contour line.

zlopas [31]2 years ago

5 0

Answer;

-They are all at the same elevation

Explanation;

-Contour line on a topographical map that detail changes in elevation. This line connects points of equal elevation. Contour lines are used in Topography to show the elevation of the land on a map. When looking at a map the contour lines look very similar to how a calm lake would appear.

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Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 3 liters of

ELEN [110]

Answer:

Total 495 liters of natural oil are needed.

Explanation:

It is given that Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 3 liters of synthetic oil.

It means the ratio of natural oil and synthetic oil is

$\frac{\text{Natural oil}}{\text{Petrolyn motor oil}}=\frac{5}{5+3}=\frac{5}{8}$

Let in order to make 792 liters of Petrolyn oil he needs x liters of natural oil.

It means the ratio of natural oil and synthetic oil is

$\frac{\text{Natural oil}}{\text{Petrolyn motor oil}}=\frac{x}{792}$

Equate both ratios,

$\frac{x}{792}=\frac{5}{8}$

On cross multiplication we get

$8\times x=5\times 792$

$8x=3960$

Divide both sides by 8.

$x=\frac{3960}{8}$

$x=495$

Therefore total 495 liters of natural oil are needed.

6 0

3 years ago

Many Learners Perform Well In Grade 12 But still not accepted into Universities.Explain Two Reasons For This

11Alexandr11 [23.1K]

Answer:

1. Confusion

2. Financial issue

Explanation:

1. The reason I say this is that many of them are not really sure about what they want they want to do in their later future making them a little confused on what to do.

2. It is a common issue which has taken away so many bright minds away from their future in helping the world and their individual community to prosper in different ways.

8 0

2 years ago

Which year had the least precipitation?

oksano4ka [1.4K]

Answer:

2000

Explanation:

It is very close between 1990 and 2000, but from what I can see, 2000 had the least precipitation.

8 0

2 years ago

Which of the following is an example of species diversity?

Vinvika [58]

Answer:

A) bears, skunks, and woodpeckers living in a forest

Duh

5 0

2 years ago

An organ ________ is a combination of several organs that perform together for a common function. a. basic b. cells c. living d

GenaCL600 [577]

Explanation:

<u>System</u> is a combination of several organs that perform together for a common function.

Hope it will help :)❤

7 0

2 years ago