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Vinil7 [7]
2 years ago
9

HELP I THINK ITS EITHER C OR D BUT IDK

Mathematics
2 answers:
IrinaK [193]2 years ago
7 0

Answer:

It's just c

Step-by-step explanation:

That's what corresponding angles look like? I don't really know how to explain this. Sorry!

marusya05 [52]2 years ago
4 0

Answer:

Hey please can you help me with Lesson 8 Unit 4? im confused on it! But it D!

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True or false? About 10 1/2 million more people live in Cairo than in Washington DC?
mixas84 [53]
7.772 million people live in Cairo.
658,893 people live in Washington DC.
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3 years ago
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Will mark brainly! 20 points please hurry and help!!
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2 years ago
If x+y= 15, y+z=25, and x+z=20, what is the arithmetic mean of x,y, and z
Mama L [17]
X + y = 15
Rearrange this to isolate for x.
x = 15 - y


x + z = 20
Rearrange this to isolate for x also.
x = 20 - z

Since they are both equal to x, that means they are equal to each other (x = x)

Set them equal to each other. 

15 - y = 20 - z
Now, isolate for y.

y = 15 - 20 + z

Now, use y + z = 25 and isolate for y.
y = 25 - z

Since they are both equal to y, we set them equal to each other.

15 - 20 + z = 25 - z
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2z = 30
2z/2 = 30/z
z = 15

Now you can plug the value for z into the other equations to find y and x.

x + z = 20
x +15 = 20
x = 20-15
x = 5

y + z = 25
y + 15 = 25
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3 years ago
Seven decreased by three times a number is forty,please help
Nonamiya [84]
Hello, 

x= the number
3x= three times the number

seven decreased by three times a number is forty, then:

7-3x=40
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Answer: the number is -11
4 0
3 years ago
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Romashka-Z-Leto [24]

Answer:

312 copies

Step-by-step explanation:

100 + 100 = 200

40 + 60 = 100

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200 + 100 + 12 = 312 copies

6 0
2 years ago
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