I have a ton of these lessons and i can do some of them but math isnt my strong suit.
Estimating with Percent
For the first three questions, choose the best estimate. State or select the letter of the correct answer.
1) 12 out of 35
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2) 25% of 63
a.) 13
b.) 14
c,) 15
d.) 16
3) 124% of 41
a.) 30
b.) 40
c.) 50
d.) 60
4) Which fraction could be used to determine a quick estimate for 76% of a number?
a.) 1/2
b.) 3/4
c.) 2/3
d.) 1/10
5) Which fraction could be used to determine a quick estimate for 0.8% of a number?
a.) 1/100
b.) 4/5
c.) 1/2
d.) 1/10
6) Which mixed fraction could be used to determine a quick estimate for 249% of a number?
a.) 2 1/3
b.) 2 7/8
c.) 2 1/2
d.) 2 3/4
Percent Equations
For the next eleven questions, solve each problem by using the percent equation.
7) What percent of 80 is 30?
Twenty percent of what number is 75?
9) Thirty-eight percent of 50 is what number?
10) Find 180% of 95.
11) Three hundred sixty is what percent of 270?
12) Find 5.75% of 300
13) What percent of 40 is 25?
14) Eighty-five is 40% of what number?
15) Twelve is 2.5% of what number?
16) What is 50% of 72?
17) Find 85% of 920.
Discounts
For the next three questions, find the amount of discount to the nearest cent.
18) $49.99 shoes, 30% off
19) $2,499.00 HDTV, 15% off
20) $15.00 t-shirt, 25% off
Simple Interest
For the next three questions, calculate the interest to the nearest cent.
21) $325 at 7.5% for 2 years
22) $949 at 12.25% for 3.5 years
23) $5,200 at 13.5% for 18 months
Commission
24) Jake is employed by Don’s Auto Sales and earns 4% commission on each car that he sells. If Jake sold a car for $6,700, how much commission will he earn?
For the next three problems, refer to the following scenario: A jewelry store marks up diamond sales 50%. A diamond ring is priced $2,400 (customer’s price).
25) Determine the wholesale price (jewelry store’s cost) of the ring. (Hint: Since the ring is marked up 50%, the customer’s price is all of the jeweler’s price (100%) plus the 50% markup. Therefore, calculate 150% of what number is $2400.)
26) Calculate the commission a sales associate would earn if he were paid 5% commission on the retail price (customer’s price) of the ring.
27) What is the store’s profit on the ring? Consider the store’s cost of the ring and also the commission paid to the sales associate. Explain how you determined the profit. (You may write a math statement to show the solution for the profit.)
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Percent Change
For the next five questions, calculate the percent of change. State whether each percent of change is an increase or a decrease, and then state the percent of change. Round the answers to the nearest whole percent.
28) original temperature: 15 degrees C; new temperature: 12 degrees C
29) original price: $40.00; new price: $55.00
30) original population: 525 people; current population: 661 people
31) last year’s points: 118 points; this year’s points: 51 points
32) original weight: 197 pounds; current weight: 140 pounds
Sales Tax
33) Bonnie bought two X-Box games, one priced at $35.00 and the other at $50.00. Sales tax on her purchase was 7%. How much change should she have received if she paid with a $100 bill?
34) A digital camera is on sale for 20% off the regular price of $599. After the price reduction, a 6.5% sales tax is added. How much will the customer pay?
Review
35) The entire circle shown below represents a total of 2,675 radios sold. Of the following, which is the best approximation of the number of radios represented by the shaded sector of the circle?
https://virtuallearningacademy.net/vla/LessonDisplay/Lesson2835/Question76255/PreAlg_L10_37.gif
a.) 275
b.) 280
c) 285
d.) 290
36) A child’s bicycle, which originally costs $90, is on sale for 10% off. State the letter of the correct answer that is NOT appropriate for calculating the amount of discount.
37) The graph below shows the results of a recent survey of the high school presidential election. The students were asked to choose their favorite candidate. About how many students were surveyed if 45 of them were undecided?
https://virtuallearningacademy.net/vla/LessonDisplay/Lesson2835/Question76257/PreAlg_L10_39.gif
a.) 100
b.) 125
c.) 155
d.) 170
38) Research: Find three examples of how percent is used in the business world. Look through the newspapers and/or magazine ads, watch TV commercials, read classified ads, research online catalogs, or reference other resources. List the three examples and explain how the percent was used.
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Mixed Review
39)
Wallace
Tags: Correct Answer, Jewelry Store
