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Darina [25.2K]
3 years ago
12

At a high school movie night, the refreshments stand sells popcorn and soft drinks. Of the 100 students who came to the movie, 6

2 bought popcorn and 47 bought a drink. 38 students bought both popcorn and a drink.
Are buying a drink and buying popcorn independent or dependent events? Justify your answer.
Mathematics
2 answers:
RUDIKE [14]3 years ago
7 0
Independent events. Someone does not have to buy popcorn to buy a drink and someone does not have to buy a drink to buy popcorn.
gulaghasi [49]3 years ago
6 0

Answer: Buying a drink and buying popcorn are independent events.

Step-by-step explanation:

Independent events are referred to as events whose occurrence does not affect the occurrence of another event.

In the case of this question, 62 bought popcorn while 47 bought a drink.

This means that the buying of popcorn by a student does not mean buying of a drink. It does not affect each other.

I hope this helps.

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Which equation represents a line which is perpendicular to the line 2x + y = -5?
Gnesinka [82]

Step-by-step explanation:

Given expression;

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  The given equation must be written in a form where the slope is the negative inverse of the given one.

A line perpendicular to another will have a negative inverse slope.

   2x + y  = -5

  Equation of a straight line is generally written as;

       y  = mx + c

y and x are the coordinates

m is the slope

c is y - intercept

          2x + y  = -5

                 y  = -2x -5

 The slope of the perpendicular = \frac{1}{2}

So,

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Pepsi [2]

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Step-by-step explanation:

Division and multiplication have the same priority in pemdas, so you can solve this by dividing/multiplying from left to right.

Also remember that when dividing exponents of the same base, you subtract them, and when multiplying, you add them.

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