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What is the constant of proportionality in the equation StartFraction x over y EndFraction = StartFraction 2 over 9 EndFraction?

StartFraction 2 over 9 EndFraction

2

StartFraction 9 over 2 EndFraction

9

User Jaynp
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2 Answers

1 vote

Answer: Theoretically the answer will be (C)-9/2 If im wrong let me know

Explanation:

User Rostyk
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4.9k points
0 votes

Answer:

(C)9/2

Explanation:

Given the equation


(x)/(y)= (2)/(9)

Two variables are in direct proportion when it is written in the form y=kx where k is the proportionality constant. To obtain the constant of proportionality, we simply make y the subject of the equation.

Therefore, we cross multiply.

2y=9x

Divide both sides by 2


y= (9)/(2)x

Therefore, the constant of proportionality in the equation is 9/2.

User Yashika Garg
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5.8k points