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bogdanovich [222]
3 years ago
7

The theater group took a survey about the type of popcorn they should sell during plays. They randomly surveyed 52 students at l

unch. Is the sampling method valid? If so how many of the boxes of popcorn should be caramel if they order 600 boxes? 13 Carmel boxes
Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0

Answer:

13 caramel I think you just put it in the question

Step-by-step explanation:

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natali 33 [55]

9x - 2y = 11 ... (i)

5x - 2y = 15 ... (ii)

Subtracting equation (ii) from (i) we get;

4x + 0 = -4

4x=-4 , x = -1

Replacing x = -1 in equation (i) we get;

9(-1) - 2y = 11

-9 - 2y = 11

-2y = 20

y = 20 ÷ -2 = -10

The solution to the system of equations is (-1,-10).

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3 years ago
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Sladkaya [172]

Answer:

x = 6

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Step-by-step explanation:

All of the angles add up to 180 degrees (since it is a triangle), so

(11x - 3) + (7x + 5) + (13x - 8) = 180

Then, combine the like terms.

31x - 6 = 180

Now, out goal is to separate the x from everything. To do that, we need to add 6 to 180.

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Then divide by 31.

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(Feel free to replace x with 6 back in the previous equation to double check it!)

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Step-by-step explanation:

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