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Tcecarenko [31]
3 years ago
5

What is the additive inverse of -7? O A. -7 O B. 7 C. -|-7| D. -(-(-7))

Mathematics
1 answer:
Alinara [238K]3 years ago
8 0

Answer:

B

Step-by-step explanation:

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so C E and F

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8 0
3 years ago
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How to solve it with walk through steps
mario62 [17]
You can say

x+y=5
x=5-y

You know the value of x, put it into the next equation.

3(5-y)-7y=19
15-3y-7y=19
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-2/5=y

Put y value back into either equation to find value of x.

x+y=5
x-2/5=5
x=5+2/5
x=27/5

Therefore, x,y = (27/5, -2/5)

Hope I helped :)
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3 years ago
Can a triangle be drawn with the following angle measures? 45, 55, 65
shtirl [24]
No because a triangle is 180 degrees and the following angles only equal to 165
4 0
3 years ago
The mean of 4 numbers is 32. If three of the numbers are 15, 21, and 75, what is the value of the fourth number?
IgorLugansk [536]
If the mean is 32 and there is 4 numbers
then the numbers add to 32x4 which is 128
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fourth number is 17
4 0
2 years ago
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