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lapo4ka [179]
3 years ago
5

Find the constant of variation k for the direct variation.

Mathematics
1 answer:
slega [8]3 years ago
4 0

Answer:

K = -2

Step-by-step explanation:

If y varies directly as x, k (constant) can be found by dividing the y-coordinate by the x-coordinate.

k = \frac{2}{-1} = -2

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Every 100 tons of the earth's crust contain about 28 tons of silicon. What is the ratio of the weight of silicon to the weight o
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