WEEK 3 REVIEW MR CRONE What is 8

WEEK 3 REVIEW MR. CRONE

What is 8 percent of 80?

What is 8 percent of 80? . 08 * 80 = 6. 4

8 is 8% of what number?

8 is 8% of what number? 8 = x * 0. 08 8/ 0. 08 = x = 100

What is the 0. 125 written as a fraction in simplest form?

What is the 0. 125 written as a fraction in simplest form? 125/1000 = 1/ 8

George is 33. 33% richer than Pete. How much poorer is Pete than George?

George is 33. 33% richer than Pete. How much poorer is Pete than George? 25%

• If there are g girls and b boys in a school population, what fraction represents the percent of boys in the school population? A) B) C) D) E) g / (b + g) b/ (g + b) (b+g) / b b/g g/b

• If there are g girls and b boys in a school population, what fraction represents the percent of boys in the school population? A) B) C) D) E) g / (b + g) b/ (g + b) (b+g) / b b/g g/b Correct Answer

• The cost of college tuition has risen from 10, 000 a year to 14, 000 a year. What is the percent increase?

• The cost of college tuition has risen from 10, 000 a year to 14, 000 a year. What is the percent increase? 4000/10000 = 40%

• The cost of a stereo is $300. If the stereo is marked down by 25%, and then marked down another 10%, what is the final cost of the stereo?

• The cost of a stereo is $300. If the stereo is marked down by 25%, and then marked down another 10%, what is the final cost of the stereo? (300 * 0. 75) * 0. 9 = $202. 5

The proportion y: 7 = 5: 3 is the same as which of the following? A) B) C) D) E) y: 3 = 5: 7 y: 3 = 7: 5 5: y = 3: 7 5: y = 7: 3 7: y = 5: 3

The proportion y: 7 = 5: 3 is the same as which of the following? A) B) C) D) E) y: 3 = 5: 7 y: 3 = 7: 5 5: y = 3: 7 CORRECT ANSWER 5: y = 7: 3 7: y = 5: 3

If it takes ½ hour to wash a car, how many days will it take to wash 96 cars?

If it takes ½ hour to wash a car, how many days will it take to wash 96 cars? 96. * 0. 5 = 48 hours = 2 days

• Is this an example of a proportion or a ratio? 5: 7

• Is this an example of a proportion or a ratio? 5: 7 RATIO

• Shampoo is on sale. The sign reads, “Buy one, buy the second at half price. ” What is the total discount (in percent form) on the purchase of two bottles of shampoo?

• Shampoo is on sale. The sign reads, “Buy one, buy the second at half price. ” What is the total discount (in percent form) on the purchase of two bottles of shampoo? • 25%

What is 5. 5% written as a fraction? A) B) C) D) E) 55/1000 55/10 11/2 5/2

What is 5. 5% written as a fraction? A) B) C) D) E) 55/1000 CORRECT ANSWER 55/100 55/10 11/2 5/2

If Keith drove 259 miles of a 500 -mile trip and his wife drove the rest of the way, what percent of the trip did his wife drive?

If Keith drove 259 miles of a 500 -mile trip and his wife drove the rest of the way, what percent of the trip did his wife drive? 48. 2%

How many tenths of a mile are there in 28. 8 miles? A) B) C) D) E) 0. 1 0. 8 8 288

How many tenths of a mile are there in 28. 8 miles? A) B) C) D) E) 0. 1 0. 8 8 288 CORRECT ANSWER