Question

Find the unknown percent

30 is ? % of 60

Answer 1

For a is b% of c rewrite as a/c=b/100 so for your case 30/60=?/100

Answer 2

Percent is a ratio out of 100.
An unknown percent means "what number out of 100."
Your unknown is the percent, so your unknown is x/100.
What you know is 30 out of 60.
The question is 30 out of 60 is the same as what out of 100?
Let x represent "what", the unknown, and write the equation

\(\dfrac{30}{60} = \dfrac{x}{100} \)

Solve for x.