Answered

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Se tiene que f varía directamente con j

Si f=27 cuando j=9

Calcule el valor de j cuando f=9

Sagot :

Using direct variation, the value of j when f equals 9 is 3

Variations

A variation is a relation between a set of values of one variable and a set of values of other variables. Direct variation. In the equation y = mx + b, if m is a nonzero constant and b = 0, then you have the function y = mx (often written y = kx), which is called a direct variation.

In the question given, we have f varying directly with j

f ∝ j

f = k j

k = f / j

f₁ / j₁ = f₂ / j₂

Substituting the values into the equation;

27 / 9 = 9 / j₂

j₂ = 9 * 9 / 27

j₂ = 81 / 27

j₂ = 3

The value of j₂ = 3

Learn more on variation here;

https://brainly.com/question/11408596

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Translation: We have that f varies directly with j, if f = 27 when j = 9. Calculate the value of j when f = 9

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