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Dmitry [639]
2 years ago
5

Cellus

Mathematics
1 answer:
mote1985 [20]2 years ago
4 0

Answer:

y = 6 when x = 18

Step-by-step explanation:

The appropriate formula for this direct proportion is y = kx, where k is the constant of proportionality.

We know y = 3 when x = 9:  3 = k(9)

This yields k = 3/9, or k = 1/3

Then the formula is y = (1/3)x

and when x = 18, y = (1/3)(18) = 6

y = 6 when x = 18

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Answer:

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Step-by-step explanation:

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2 years ago
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Answer:

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