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sp2606 [1]
3 years ago
13

Mr.Chang had 30 boxes each box has 10 erasers If he gave each student has 2 erasers how many students could he give erasers to

Mathematics
1 answer:
Kitty [74]3 years ago
5 0
150 students 30x10 = 300. 300÷2=150
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3 years ago
Mr. Nelson lost one of his students' test
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Complete question :

Mr. Nelson lost one of his students' test papers. He knows that the other 4 students scored as follows: 60, 62, 56, 57. He also knows that the average score is 59.2. What is the score on the missing paper?

Answer:

61

Step-by-step explanation:

Given the following :

Total number of students = 4 + 1 missing = 5

Score on the four avaliable papers = 60, 62, 56, 57

Average score of the 5 papers = 59.2

Score on missing paper :

Sum of each score / number of papers

Sum of each score = sum of available scores + missing score

Let missing score = m

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Average = total sum / number of observations

Hence,

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296 = 235 + m

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6 0
3 years ago
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Answer:

Mean: 5

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