01-03-2019
Mathematics

contestada

The value of y varies directly with x. If x=6, then y=21. If x=10,what would be the value of y

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01-03-2019

Answer:

Answer:

When x = 12, y = 4.

Explanation:

If y ∝ x we can write that y = k ⋅ x where k is a constant of proportionality.

Using the values given:

6 =18 ⋅ k ⇒ k = 1 3 y = 1 3 ⋅ 12 = 4

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