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mestny [16]
3 years ago
8

What's 15/45 written as a fraction in simplest form A. 3/15 B.13 C.53 D. 153

Mathematics
2 answers:
Nadya [2.5K]3 years ago
7 0

Answer:

None of those options lol

Step-by-step explanation:

But the answer is 1/3

Hoochie [10]3 years ago
3 0

Answer:

None of the above

Step-by-step explanation:

15/45=1/3

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A set of N = 20 exam scores has a mean of m = 50. The instructor discovered that an error was made grading one exam, so 20 point
tatuchka [14]

Answer:

The new mean for the exam scores is 51

Step-by-step explanation:

the mean can be calculated using the formula

mean of scores = \frac{Sum total    of scores}{Number of students}

before the 20 points was added, the mean of the score was = 50.

Inserting this into the formula, we have:

50 = \frac{Sum total}{20 students}

from this, we can compute the sum total of the scores as

sum total = 50 × 20 = 1000

when the extra 20 marks is added, the sum of the entire scores will be changed to 1000 + 20 = 1020.

Hence the new mean will be computed as (New Sum total of scores / Number of students)

= \frac{1020}{20} = 51.

∴ The new mean of the scores is = 51

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Step-by-step explanation:

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2 years ago
ILL BRAINLIEST YOU PLEASE HELP ME
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Help asap please!! &lt;3
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Answer:

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Step-by-step explanation:

You are welcome!!

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