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azamat
3 years ago
14

Which substance has been changed most over time from its original plant material?

Mathematics
2 answers:
juin [17]3 years ago
6 0

Answer:

the answer is b

Step-by-step explanation:

Contact [7]3 years ago
4 0
The answer to this is B. anthracite coal. Organic matter gradually turns into coal over many years of high pressure and temperature under the earth. The lowest form of coal is peat (where it is still recognizably plant matter), followed by lignite, then sub-bituminous coal, then bituminous coal, then anthracite. These are also ordered from lowest to highest composition of carbon.
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Im willing to give 20 points maybe even more
Thepotemich [5.8K]

Answer:

Equations are

20c + 10m = 495..............(1)

8c + 1m = 178.5.................(2)

Now ,  equation (2) * 10 = 80c + 10m = 1785...........(3)

So, Eq. (3) -  Eq(1) =

80c + 10m - 20c - 10m = 1785 - 495

60c = 1290

c= 21.5

********************************************************

Now place the value of c in Eq (2)

So , m =6.5

Mark my answer as brainlist answer

Step-by-step explanation:

3 0
3 years ago
se the drawing tool to form the correct answers on the provided grid. For the sequence (1, 2, 4, 8, . . .), the index starts at
Andru [333]

Answer:

See attached

Step-by-step explanation:

For each increase of 1 in the index, the function value doubles. The size of the function value rapidly exceeds the limit of any linear grid.

We've shown a few points plotted. Perhaps it will give you the idea of what you need to do.

6 0
3 years ago
Is 1.75 less or greater than 1 1/2
julsineya [31]

Answer:

Greater 1 1/2 is 1.50

Step-by-step explanation:

Please Brainliest if right <3

7 0
3 years ago
Read 2 more answers
(FIRST CORRECT FOR BRAINIEST) Solve for x
Katyanochek1 [597]

Answer:

x = 12

Step-by-step explanation:

Angles in a triangle add up to equal 180 degrees

Hence, 10x - 11 + 3x - 2 + 3x + 1 = 180

( note that we just created an equation that we can use to solve for x )

we now solve for x using the equation we created

10x - 11 + 3x - 2 + 3x + 1 = 180

step 1 combine like terms

10 + 3x + 3x = 16x

- 11 - 2 + 1 = -12

we now have 180 = 16x - 12

step 2 add 12 to each side

- 12 + 12 cancels out

180 + 12 = 192

we now have 192 = 16x

step 3 divide each side by 16

16x / 16 = x

192 / 16 = 12

we're left with x = 12

4 0
3 years ago
Read 2 more answers
Don’t need an explanation just the answer. Community takes too long lol
Nimfa-mama [501]

SOLUTION

Step 1: Find the area of the wall.

\begin{gathered} A=l\times b \\ A=42\times25.5 \\ A=1071ft^2 \end{gathered}

Step 2: Find the cost of wallpaper per square foot

=\frac{total\text{ cost of wallpaper}}{Area\text{ of the wall}}\begin{gathered} =\frac{771.12}{1071} \\ =0.72\text{ dollars} \end{gathered}

The correct answer is B: $0.72

3 0
1 year ago
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