We want to find what percent of 40 is 10 by using a model. We can split the model into intervals of 10. There are 4 such intervals in 40, so each of them represents 25%. Let's find what percent of 40 is 10!
We found that 10 is 25 % of 40.
Checking Our Answer
We can check our answer by solving the percent proportion. The percent proportion is a proportion that sets the ratio of a part of a whole equal to the ratio of a percent out of 100. We can represent a is p percent of wwith the given proportion.
part/whole=percent/100 ⇔ a/w=p/100
We can find what percent 10 of 40 is by thinking about 10 as the part of a whole and 40 as the whole. Let's substitute a= 10 and w= 40 into the formula and solve for p using the Properties of Equality.
