Guppies

Audrey has some guppies in a fish tank. The ration of the oranges guppies to silver guppies is 3:5. She has 12y oranges guppies. Write the number of silver guppies she has in terms of y

Result

s = (Correct answer is: 20y)

Step-by-step explanation:

$$\begin{gathered} 3:5=12y:s \\ s=5\mathrm{/}3\cdot 12y \\ s=20y \end{gathered}$$

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