discount
markups
markups
A store is having a storewide ¼ off sale. What is the amount saved on an item that costs $7.25?
0.25 ∙ 7.25 = $1.81
The original price of a wooden table is $34. With a discount of the 25%, what is the sale price
34(0.75) = 25.50
How much money would an investment of $3,875 in a 3-year period and 4% simple interest rate makes?
3875 ∙ 0.04 ∙ 3 = 465 The investment would make $465 in interest.
. The original value of an antique vase is $350. That same item is now worth $280. Find the percentage of change.
280−350 350 = − 70
350 = −0.2 →
20% decrease
What is the percent error in using 3.14 as an approximation of 𝜋?
|3.14 − 𝜋 |/𝜋 = |−0.00050696| = 0.00051 = 0.05% The percent error is 0.05%
John bought a dented washing machine because it was discounted 3 20 off the original price of $650. What was the reduced price, in dollars?
3 /20 ∙ 650 = $97.50 off
650.00- 97.50 = 552.50
Gary buys a pair of jeans online for $78. The shipping company charges 8% of the item price to make the delivery, how much do the jeans and shipping cost to Gary?
78(1.08) =84.24
$560 are put into a savings account. The account has a 6% simple interest rate. How much money would the account have by the end of 3-years?
560 ∙ 0.06 ∙ 3 = 100.8
100.8 + 560 = 660.8
The account would have $660.80 in it
A company created a new box that can hold 5% more cereal. The original box held 300 grams of cereal. How much cereal does the new box hold?
300 ∙ 1.05 = 315
The new box holds 315 grams of cereal.
Jim wants to read 25 pages from a book every day. After two weeks, he only read 12 pages per day. What is the percentage of error?
|25 − 12|/ 12 = |13/12| 12 = 1.083= 108.33%
The percentage of error is 108.33%.
A used laptop costs $420. The laptop was then marked up 57% before selling it. What was the sale price of the laptop?
420 ∙ 0.57 = $239.40 markup
420.00-239.40=659.40
A customer pays $435.89 for an Xbox Game console and a game. The customer also needs to pay 5% for taxes with his purchase. What is the total price the customer needs to pay at checkout?
435.89(1.05) = 457.68
How much money would an investment of $7,730 during a 3-year period with a 4% simple interest rate make?
7730 ∙ 3 ∙ 0.04 = 927.6 The investment would make $927.60
The population of a city has increased 20% over the years. A few years back the city had a population of 18,000 people. How many people does it have now?
18,000 ∙ 1.2 = 21,600 The population is 21,600.
Justin is preparing to run a 5K race. He wanted to run 3 miles a day but, by the end of the week, he only managed to run 2 miles per day. What is the percentage of error?
| 3 − 2/ 2 | = | 1 2 | = 0.5 = 50%
The percentage of error is 50%
The owner of a fast-food chain spends $3.25 making a burger and then adds 115% markup to sell the burger. Calculate the selling price of the burger.
3.25 ∙ 1.15 = $3.74 markup
3.25+3.74=6.99
The sales tax rate is 4%. If Gus buys a new pair of shoes priced at $117.93, what will be the cost including tax?
117.93(1.04) = 122.65
An amount $360 are put into a savings account. The account has a 2% simple interest rate. How much money would the account have by the end of 10 years?
360 ∙ 10 ∙ 0.02 = 72 At the end of 10 years, the account would have $432.
A football event held over 35,750 people. Now, the event holds 26% more people. How many people are at the event?
35,750 ∙ 1.26 = 45,045 45,045 people are at the event.
A company needed to hire a new sales manager and expected 28 people to turn in resumes for a job interview. By the end of the process, only 17 people did. What is the percentage of error?
|28 − 17/ 17 | = |11/ 17| = 0.647 → 64.7%
The percentage of error is 64.7%.
A scientific calculator is 18% off and its sale price is $29.82. What is the original price of the scientific calculator?
𝑥 − 0.18𝑥 = 29.82
0.82𝑥 /0.82 = 29.82 /0.82
𝑥 = $36.37
Riley bought a game that cost $45.25. After sales tax, the total is $47.99. What is the sales tax percentage?
47.99 − 45.25 = 2.74 sales tax
2.74 /45.25 × 100 = 6.06%
How much money would an investment of $390 in an 3-year period with a 4% simple interest rate make?
390 ∙ 3 ∙ 0.04 = $46.80
The investment would make $46.80.
After improvements, the value of a car has increased 35%. The original value of the car was $2,800. How much is the car worth now?
2800 ∙ 1.35 = 3780 The car is now worth $3,780.
The population of a town in the year 2000 was 38,000. It was expected to rise up to 45,000 by the end of the year 2020. But, by 2020 the population was only 36,000. What was the percentage of error
|45,000 − 36,000|/ 36,000 = |9,000/36,000| = 0.25 → 25%
The percentage of error was 25%