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Dafna1 [17]
3 years ago
14

Please Help.....................................................

Mathematics
1 answer:
cluponka [151]3 years ago
7 0
68% due to more 1,2, and 3's
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Professor Liu gave the same quiz to the students in her morning class and in her afternoon class. The average (arithmetic mean)
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Answer:

Afternoon class has more students.

Step-by-step explanation:

Let m be the number of students in the morning class and n be the number of students in the afternoon class.

The average score for the students in the morning class was 80, then the sum of their scores is 80m.

The average score for the students in the afternoon class was 86, then the sum of their scores is 86n.

The sum of the scores of both classes is

80m+86n

and the average score is

\dfrac{80m+86n}{m+n}

The average (arithmetic mean) score for the two classes combined was 84, then

\dfrac{80m+86n}{m+n}=84\\ \\ 80m+86n=84m+84n\\ \\86n-84n=84m-80m\\ \\2n=4m\\ \\n=2m

This means n is greater, so afternoon class has more students.

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3 years ago
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solniwko [45]

The answer is A. If they buy 16 masks and 12 noses then that is 28.

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3 years ago
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Reika [66]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
The table shows a basketball player score in 5 Games how many points must the basketball players score in the next game to achie
bogdanovich [222]

Answer:

You would have to score 17 points.

Step-by-step explanation:

13x6=78 is the points you have to reach to get 13 points per game.

Add up all numbers, which is 61.

78-61=17

That is your answer.

3 0
3 years ago
In a box there are 50 counters :white ones,blue ones and red ones .There are eleven times as many white ones as blue ones.There
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Find the question mark using the model I've provided and that'll be the answer!

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