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Mandarinka [93]
3 years ago
10

A teacher wrote the numbers 10 ,-2, 4, 3, -1, -7 ,1 on a white board.the teacher asked which number should she write in order to

make the sum of all the numbers equal to zero?
Mathematics
1 answer:
storchak [24]3 years ago
3 0
Let x be that number:

x +10 -2 +4 + 3 - 1 - 7 +1 = 0

 x +8 = 0

and x = - 8

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Help me now !!!!!!!!!!!!!!!!
miskamm [114]

In the first diagram the value of k is 10 and in the second diagram the value of k is 15/2.

<h3>What is the triangle?</h3>

The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.

In the first diagram:

The sum of the 5k + 20 and 7k + 40 is 180

5k + 20 + 7k + 40 = 180

12k + 60 = 180

12k = 180 -60

12k = 120

k = 10

In the second diagram:

The sum of the two interior angles is equal to the exterior angle.

40 + 12k + 10 = 8k + 80

4k = 30

k = 30/4 = 15/2

Thus, in the first diagram the value of k is 10 and in the second diagram the value of k is 15/2.

Learn more about the triangle here:

brainly.com/question/25813512

#SPJ1

3 0
2 years ago
2-5|5m-5|=-73 absoute value
Wewaii [24]
Solutions i found was  m=4 or  m=-2<span>

</span>
6 0
3 years ago
Read 2 more answers
Ms. Wall will roll a single number cubes. What is the probability that she will roll an even number?
Arturiano [62]
Well single number, meaning from 1 - 9. She has a higher chance of getting an odd number for sure, as there are more odd numbers on the dice :) So, the ratio is 4:5 and fraction: 4/5. %<span>44.444 is your answer :) 

Thank you,
Darian D.</span>
4 0
3 years ago
Two numbers have a sum of 9 when added together.
antiseptic1488 [7]

Answer:40

Step-by-step explanation:+$)#)#

5 0
3 years ago
-5(x + 3) - 4x = 6(2x + 3) - 12
MaRussiya [10]

Answer:x=-1

Step-by-step explanation:

8 0
2 years ago
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