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3 years ago

How are sedimentary rocks changed into metamorphic rocks?

Mathematics

1 answer:

Karolina [17]3 years ago

4 0

Answer:

D. : Heat and Pressure

Step-by-step explanation:

(Before I explain, I think this question belongs to Science category, and not Mathematics. :)

3 factors turn sedimentary to metamorphic rocks. Heat, Pressure, and Chemical Active Fluids which formed.

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Select the correct answer from each drop-down menu. A system of equations and its solution are given system A x-y=7 -3x+9y=-39 s

galina1969 [7]

Answer:

Step-by-step explanation:

x-y=7

-3x+9y=-39

Divide the second equation by 3

-x +3y = -13

Add this to the first equation

x-y=7

-x +3y = -13

----------------------

0x +2y = -6

Divide by 2

2y/2 = -6/2

y = -3

Now find x

x-y = 7

x -(-3) = 7

x+3 = 7

Subtract 3 from each side

x = 4

(4,-3)

Or by substitution

x-y=7

solve for x

x = 7+y

-3x+9y=-39

Substitute y+7 in for x

-3(7+y) +9y = -39

Distribute

-21 -3y +9y = -39

Combine like terms

-21 +6y = -39

Add 21 to each side

6y = -18

4 0

3 years ago

Help if you can PLease

cricket20 [7]

Answer:

x = 2

Step-by-step explanation:

all the angles in a triangle that are added together will equal 180 degrees

so having known that you will get this equation: \/

2x+5+8x=25

then you solve

8x+2x+5=25

10x+5=25

10x=20

x=2

4 0

3 years ago

PLEASE HELP !!!!!10 POINTS Please show steps and explain how to get answer <br><br> Solve (x-5)+3=7

Thepotemich [5.8K]

(x-5)+3=7
-3 -3
(x-5) = 4
x-5 = 4
+5 +5
x=9

6 0

4 years ago

Read 2 more answers

Find the equation of line (use exact numbers)

maw [93]

Answer:

$y=3x+3$

Step-by-step explanation:

Use the slope-intercept form:

$y=mx+b$

m is the slope and b is the y-intercept. The y-intercept is the place where x is equal to 0, and the slope is the change in the y-axis over the change in the x-axis, otherwise known as rise over run ( $\frac{rise}{run}$ ).

If you study the graph, you can see that the line crosses the y-axis at (0,3), so 3 is the y-intercept. Insert into the formula:

$y=mx+3$

Now find the slope. Use the slope formula:

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{rise}{run}$

You need two points first. You can use the y-intercept (0,3) and another even point, like (1,6). Insert the values:

$(0_{x1},3_{y1})\\(1_{x2},6_{y2})\\\\\frac{6-3}{1-0}=\frac{3}{1}=3$

The slope is 3. Insert this value:

$y=3x+3$

:Done

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3 years ago

What is 14/25 as a percent

coldgirl [10]

You simply divide, since it's a fraction. If you divide 14 b7 25, you get an answer of 0.56. :)

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3 years ago

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