Percent Word Problems Mrs. Kuznia Math 8 Day 12

Word Problems  How do we solve word problems involving percents? –Similar to last chapter we are going to set up a proportion to solve

What will the proportion look like?  We will ALWAYS use the following proportion for percent problems:  IS=% OF100

Example  What is 22% of 200?

Example  What percent is 30 out of 50?

Example  66 is 80% of what?

Try:  What percent is 42 out of 80?  175 percent of 60 is what number?  What is 30% of 120?

Word Problem.  About 15 percent of television is taken up by commercials. How much commercial time is there in a 2 hours show (in minutes)?

Word problem  In a recent survey, 25 out of 60 students said they prefer English Class to Math class. What percent of students is this?