INSTRUCTION: Solve the following problems. Show your solution.
1. Y varies directly with X. Given that Y=21 and X=7, what is Y when X=3?​


Sagot :

Answer:

y = 9

Step-by-step explanation:

y = kx

21 = 7k

Divide 21 to 7

3 = k

y = 3x

y = 3(3)

y = 9

I hope it's help

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