20% of what number is 30? Pick the proportion that could be used to solve.

Mathematics · High School · Thu Feb 04 2021

Answered on

Determine what number's 20% is 30.

Solution:

In order to determine the number, we simply need to divide 30 by the decimal value of 20%. To do so we first need to convert 20% into decimal. In converting a percentage into decimal, divide the percentage by 100, hence in converting a decimal to percentage, multiply the percentage by 100.

= 20/100

= 0.2

= 30/0.2

= 150

Final answer:

30 is 20% of 150.