Mitchell took a math exam today.If he got 63 out of 84 questions correct, what percentage did Mitchell get wrong?
2 answers:
Answer: The required percentage is 25%.
Step-by-step explanation: Given that Mitchell took a math exam today and got 63 out of 84 questions correct.
We are to find the percentage of questions that Michael got wrong.
The number of questions that Michael got correct, n = 63 and
the total number of questions, N = 84.
So, the number of questions that Michael got wrong is
N - n = 84-63 = 21.
Therefore, the percentage of questions that Michael got wrong is
Thus, the required percentage is 25%.
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So, you can go through each of your options to see which ones work with those rules.
A. 2.5x + 3y = 12 No, this is not in Standard Form. 2.5 can be rewritten as 2<span>
B. -10x - 3y = 1 No, this is not in Standard Form. A is -10, but A can't be negative.
C. 2x + 3y = 12 Yes, this is in Standard Form. It follows all of the rules.
D. 5x + 5y = 10 Yes, this is in Standard Form. It follows all of the rules.
So, C and D are both written in Standard Form.
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