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If y varies directly as x and y = 4 when x = 10, what is y when x is 15?​

Sagot :

Answer:

y = kx is the equation for direct proportion.

4 = 10k

⅖ = k

The equation now becomes y = ⅖x with k = ⅖.

y = ⅖(15)

y = 6

Step-by-step explanation:

Direct proportions (easy).

That's all. Hope it helps.