Two fraction equation

Find d value of q in the equation 30/16=q/48.

Correct answer:

q =  90

Step-by-step explanation:

$$\begin{gathered} 30\mathrm{/}16=q\mathrm{/}48 \\ {\displaystyle \frac{3\cdot 30}{3\cdot 16}}={\displaystyle \frac{q}{48}} \\ {\displaystyle \frac{3\cdot 30}{48}}={\displaystyle \frac{q}{48}} \\ q=3\cdot 30=90 \end{gathered}$$

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