percent proportions review

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

• 102 words per minute
• 100 words per minute
• 400 words per minute
• 412 words per minute

Which is the better buy: a 12 pack of Coke for $3.50 or a six pack of Coke for $1.80?

• The 12 pack of Coke

• The 6 pack of Coke

• Neither

• They are the same

Ben ran for president of his class. If there are 410 students and he received 72% of the vote, how many students voted for Ben?

• 212 students

• 810 students

• 295 students

• 410 students

Hannah is driving 680 miles from Nashville to Orlando. If she has 306 miles left to drive, what percent of the trip has she driven?

• 55%

• 40%

• 52.5%

• 45%

Marcus went on a diet and lost weight. He now weighs 197.4 pounds, which is 84% of his original weight. How much did he weigh at the beginning of the diet?

• 200 lb

• 235 lb

• 225 lb

• 250 lb

26 is 5% of what number?

• 1.3
• 2.5
• 25.95
• 520

Sarah earns $20 a day working after school. She spent 30% of her daily earnings on Monday. How much money did she spend on Monday?

• $1.40
• $6
• $0.60
• $14

What is 90% of 250?

• 245
• 225
• 255
• 244.33

Write a proportion and solve:

What percent of 50 is 80?

• 160%

• 62.5%