v8pprk5sp6 v8pprk5sp6

14-11-2021
Mathematics

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So if y varies directly as x, and y=21 when x=3. What is x when y=42?

Respuesta :

chetankachana chetankachana

14-11-2021

Answer:

x = 6

Step-by-step explanation:

Equation:

[tex]\frac{3}{21} = \frac{x}{42}\\\\Cross - multiply\\\\3 *42 = 21x\\\\126 = 21x\\\\x = 6[/tex]

-Chetan K

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