Question

My son needs help on finding percents. example. what is 53% of 80?

Answer 1

According to the information given in the exercise, you know that the 100% is 80.

Let be "x" the number that is the 53% of 80.

By definition, you can write 53% as a Decimal number by dividing it by 100. Then, this is:

$\frac{53}{100}=0.53$

You can write 100% as a Decimal number:

$\frac{100}{100}=1$

Knowing the above, you can set up the following proportion:

$\frac{80}{1}=\frac{x}{0.53}$

Now you must solve for "x":

$\begin{gathered} (0.53)(80)=x \\ x=42.4 \end{gathered}$

The answer is:

$42.4$