Question

Set up a proportion and use cross multiplication to solve.

15 is
% of 60.

Answer 1

To set up a proportion for the statement "15 is x% of 60," we can write it as:

\[
\frac{15}{60} = \frac{x}{100}
\]

Next, we'll use cross multiplication to solve for \(x\):

Cross multiplying gives us:

\[
15 \cdot 100 = 60 \cdot x
\]

Calculating the left side:

\[
1500 = 60x
\]

Now, divide both sides by 60 to solve for \(x\):

\[
x = \frac{1500}{60}
\]

Calculating that gives:

\[
x = 25
\]

Therefore, 15 is 25% of 60.