discount
markups
markups
taxes and tips
simple interest
percent change
other math
100
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
100
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
100
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.
100
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
100
Solve for h.
2h-13=3
200
John bought a dented washing machine because it was discounted 15 percent 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
200
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
200
$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
200
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.
200
k is less than 29
300
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
300
A customer pays $435.89 for an Xbox Game console and a game. The customer also needs to pay 5% for taxes with his purchase. What is the total price the customer needs to pay at checkout?
435.89(1.05) = 457.68
300
Gina deposits 150 dollars at the start of each year into college savings account that pays 4% simple interest at the end of each year. She does not deposit the interest she earns each year. How much total interest will Gina earn on her deposits through the end of the fifth year?
30$
300
The price of gasoline rose from $3.50 to $3.71 in one week. By what percent did the gas price rise?
(3.71-3.50)/3.50 = .21/3.50= .06
6% increase
300
c=10
400
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
400
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
400
I have invested $1,030 at 4% compounded annually. The total balance in my account is $1,114.05. How long was my money invested?
What is 2 years?
400
An avocado costs $1.32 in the winter, but in summer they only cost $0.98. What is the percent change of the price?
26% decrease
400
25/8 or 3 and 1/8
500
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
500
Riley bought a game that cost $45.25. After sales tax, the total is $47.99. What is the sales tax percentage?
47.99 − 45.25 = 2.74 sales tax
2.74 /45.25 × 100 = 6.06%
500
Lilly makes regular deposits to a savings account to save money for retirement. She deposits 60,000 dollars at 7.8% for 12 years. How much did she earn?
56,160$
500
Mr. Vaughters has $125,000 in a savings account. He buys a house and makes a downpayment and now has $66,000 in his savings. What was the percent decrease after buying the home?
47.2%
500
e=-3/20 or -.15