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solmaris [256]
2 years ago
9

Answers For 1,2,3,4,5,6,7,8,9 Pleas

Mathematics
1 answer:
g100num [7]2 years ago
5 0

Answer:

I don't know ether

Step-by-step explanation:

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The answer is 100 I’m sure
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A quiz has thirty questions whose answers can only be correct or incorrect.
satela [25.4K]

Using a system of equations, it is found that Gina got 22 questions correct in the test.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Number of questions she got correct.
  • Variable y: Number of questions she got wrong.

The test has 30 questions, hence:

x + y = 30 -> y = 30 - x.

She scored 152 points, hence, considering the value of each question:

8x - 3y = 152.

Since y = 30 - x:

8x - 3(30 - x) = 152

11x = 242

x = 242/11

x = 22

Gina got 22 questions correct in the test.

More can be learned about a system of equations at brainly.com/question/24342899

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2 years ago
Elements can have a positive charge, a negative charge, or no charge. Determine the magnitude of each element given below. Eleme
Ipatiy [6.2K]

Answer: ||q_{A}||=5, ||q_{B}||= 3, ||q_{C}|| = 0.

Step-by-step explanation:

The magnitude is an absolute value by definition. Hence, each element has the respective value:

||q_{A}|| = 5\\||q_{B}|| = 3\\||q_{C}|| = 0\\

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A pile of 15 boxes is 3 metres high. What is the depth of each box?
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200mm is the right answer
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since the number of nickels is 10 so the expression is5+5

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