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Oksi-84 [34.3K]
3 years ago
13

If y varies directly with x and y is -6 when x is 2, what is x when y is -22?

Mathematics
1 answer:
zubka84 [21]3 years ago
8 0

Answer:

x = \frac{22}{3}

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = - 6 when x = 2, then

- 6 = 2k ( divide both sides by 2 )

- 3 = k

y = - 3x ← equation of variation

When y = - 22, then

- 22 = - 3x ( divide both sides by - 3 )

x = \frac{-22}{-3} = \frac{22}{3}

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