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1 year ago

The table displays the scores of students on a recent exam. Find the mean of the

1 answer:

4 0

The mean of the scores to the nearest 10th
Score Number of Students is 59.
We have given a data,
80,85,6,90,95,100,6,8
What is the meaning of mean?
Mean is the adding all the scores together,
then divide by the number of test scores.
So we have given a data,
80,85,6,90,95,100,6,8
80+85+6+90+95+100+6+8=470
The number of of test scores=8
mean
Mean=59

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2 years ago

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Answer:

The system if equation that can be used to derive this are

6x + 4y = 69 AND

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Step-by-step explanation:

The question here says that Taylor and Nora went to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks and 4 bags of popcorn Nora spends a total of $96.00 on 12 drinks and bag of popcorn.And we are now told to write a system of equations that can be used to find the price of one drink and the price of one bag of popcorn. Using these equations,we should determine and state the price of a drink, to the nearest cent .

Now, Let's assume that the price of a drink is "X" and that of a bag of popcorn to be Y

The first person made a purchase which led to the equation

6x + 4y = 69______ equation 1

And the second person also made a purchase that lead to the equation

12x + y = 96_____ equation 2

We make y the subject of the formula in equation 2 and apply it in 1

Y = 96 - 12x

Now apply the above in equation 1

6x + 4y = 69

6x + 4(96 - 12x)= 69

6x + 384 - 48x = 69

42x = 384 - 69

X = 315/42

X = 7.5

Substitute x= 7.5 in equation 2

12x + y = 96

12(7.5) + y = 96

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Y = 6

Therefore, the price of a drink is $7.5

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Answer:

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