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svetoff [14.1K]
3 years ago
6

Explain how you calculate the constant of variation.

Mathematics
1 answer:
notsponge [240]3 years ago
4 0

Answer:Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3. Thus, the equation describing this direct variation is y = 3x.

Step-by-step explanation:The constant of variation means the relationship between variables does not change. When we want to identify the constant of variation for an equation, it is helpful to refer to one of the following formulas: xy = k (inverse variation) or y/x = k (direct variation), where k is the constant of variation.

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sladkih [1.3K]
To find Tim's overall score, first we must find the sum of his scores from quizzes, notes, and tests.

Hence, we have

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tests = (9 + 5 + 9)/3 = 23/3

Now, we must consider the percentage that these tests contribute to his overall score. So we have the following:

quizzes = 0.5(16)/3 = 8/3
notes = 0.2(17)/3 = 3.4/3
tests = 0.3(23)/3 = 6.9/3

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Answer: 6.1
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Varvara68 [4.7K]
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=)

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