Exploring Percent Proportions in Word Problems

The video tutorial covers percent proportions in word problems, using examples from the Houston Zoo and other real-world scenarios. It explains how to solve for parts, wholes, and percentages using cross products and ratio simplification. The tutorial includes practical examples like calculating the percentage of students attending a dance, time spent on rollercoasters, and votes in an election.

What is the first step in solving percent proportion problems?

• Guess the answer and check

• Calculate the percentage directly

• Set up a proportion with something over 100

• Identify the total number of items

If 30% of the zoo's exhibits are birds and there are 130 exhibits, how many are bird exhibits?

• 39 exhibits

• 90 exhibits

• 40 exhibits

• 30 exhibits

What is the purpose of setting up a proportion in percent problems?

• To guess the answer

• To confuse the students

• To make the problem look harder

• To simplify the calculation

What percent of the seventh grade class did not attend the dance if 54 out of 180 students missed it?

• 25%

• 40%

• 30%

• 20%

How long did Danielle spend on rollercoasters if she was at the park for 8 hours and spent 65% of her time on them?

• 5.2 hours

• 4.5 hours

• 6 hours

• 3.2 hours

How can cross products help in solving percent proportion problems?

• By guessing the percentage

• By drawing a picture

• By eliminating the need for calculation

• By creating an equation to solve

What percent of students play woodwind instruments if 45 out of 75 band members do?

• 60%

• 50%

• 70%

• 40%

If Stephanie got 22 questions correct on her math test and that was 88% of the total, how many questions were on the test?

• 25 questions

• 30 questions

• 20 questions

• 50 questions

How many jellybeans are in the jar if 40% of them are red and there are 28 red jellybeans?

• 70 jellybeans

• 100 jellybeans

• 50 jellybeans

• 60 jellybeans

If Jake received 75% of the 240 votes in the school election, how many votes did he get?

• 180 votes

• 220 votes

• 160 votes

• 200 votes