1. 12 is 20% of what number?
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
We know that 100% of a number, is the number itself. We need to find this unknown X number that 20% of X is 12. Lets create a simple ratio to create the equation.
If 100% of X is X,
Then 20% of X is 12.
Cross multiply in order to create the equations. 12 times 100 is equal to 20 times x.
20x=12*100
20x=1200
Divide both sides with 20.
20x/20 = 1200/20
x=60