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Variables x and y are in direct proportion, and y = 48n when x = 16n. Which value of k correctly relates x and y in the equation y = kx?
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Variables x and y are in direct proportion, and y = 48n when x = 16n. Which value of k correctly relates x and y in the equation y = kx?

User Mohammad Alavi
by
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2 Answers

4 votes

Answer:

A.) 3

Explanation:

I did it on USATestprep

User Heartmon
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y = kx is the direct variation formula. They are giving y = 48n AFTER they have plugged in a value for x. The value plugged in for x is 16n. To find 'k' we must divide 48n by 16n.
48n/16n = 3 So k = 3.
The equation is therefore y = 3x
User Jakhongir Anasov
by
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