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If jk=45\dfrac{j}{k}=\dfrac{4}{5}, Express kk in terms of jj?

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Full solution

Q. If jk=45\dfrac{j}{k}=\dfrac{4}{5}, Express kk in terms of jj?
  1. Given Proportion: We are given the proportion jk=45\dfrac{j}{k}=\dfrac{4}{5}. To find k in terms of j, we need to solve for k.
  2. Cross-Multiply: Cross-multiply to solve for k.\newlinej∗5=k∗4j * 5 = k * 4
  3. Isolate k: Divide both sides of the equation by 44 to isolate k.\newlinek=j∗54k = \dfrac{j * 5}{4}
  4. Simplify Expression: Simplify the expression for k.\newlinek=5j4k = \dfrac{5j}{4}

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