a zoo has 15 emperor penguins. the emperor penguins make up 30% of all the penguins at the zoo. how many…
a zoo has 15 emperor penguins. the emperor penguins make up 30% of all the penguins at the zoo. how many penguins live at the zoo? penguins
Answer
Answer:
50
Explanation:
Step1: Set up the proportion
Let $x$ be the total number of penguins. We know that $\frac{15}{x}=\frac{30}{100}$.
Step2: Cross - multiply
$30x = 15\times100$.
Step3: Solve for $x$
$x=\frac{15\times100}{30}=50$.