Percent Problems and Proportions

This video tutorial builds on the previous lesson about percent proportions. It reviews the formula 'is over of equals percent over 100' and demonstrates how to solve word problems using this formula. The tutorial includes basic and advanced examples, emphasizing the importance of identifying the 'whole' and 'part' in each problem. The lesson concludes with a reminder to use the video as a resource for review and encourages students to ask questions in class.

What is the formula used for solving percent proportion problems?

• is over of equals percent over 100

• is equals of over percent times 100

• percent over is equals 100 over of

• of over is equals 100 over percent

If 50 is 20% of a number, what is that number?

• 300

• 200

• 250

• 350

What percent of 20 is 4?

• 25%

• 20%

• 15%

• 10%

70% of 250 is what number?

• 170

• 160

• 175

• 150

10 is 5% of what number?

• 300

• 100

• 400

• 200

What number is 45% of 180?

• 70

• 75

• 81

• 85

40% of what number is 82?

• 180

• 200

• 205

• 210

What percent of 90 is 36?

• 30%

• 40%

• 35%

• 45%

60 is 25% of what number?

• 200

• 220

• 260

• 240

If a jug is 40% full with 6 cups of water, what is its total capacity?

• 15 cups

• 12 cups

• 20 cups

• 18 cups