Discount
What is a discount?
A discount is a reduction from the original price of an item.
What is a markup, and why do stores use it?
A markup is an increase in price to make a profit.
What is a unit rate
A unit rate is the comparison of two different units with a denominator of 1
What is unit price?
Unit price is the cost of one item or unit.
What is cross multiplication used for?
To solve proportions with missing values.
A $50 shirt is on sale for 10% off. What’s the new price?
10% of $50 = $5 → $50 – $5 = $45
A $40 product is marked up by 25%. What is the new price?
$50
What is the unit rate of 120 km in 3 hours?
40 km/h
Which is the better deal: 6 apples for $3.60 or 8 apples for $4.80?
Same price. $0.60 per apple
What is a proportion
comparing two equivalent fractions
A $120 jacket is discounted by 22.5%. What is the final price?
22.5% of $120 = $27 → $120 – $27 = $93
A $60 item is marked up by 135%. What is the final price?
$141
A machine produces 600 widgets in 8 hours. What’s the rate per hour?
600 ÷ 8 = 75 widgets/hour
12 granola bars cost $9.48. What is the price per bar?
$0.79 per bar
Two cities are 7 cm apart on a map with a 1 cm : 12 km scale. What is the real distance?
84 km
What is the better deal? 58.6% off of $335 or 60.7% of $425
Option A: $138.79
Option B: $167.02
Store A buys the backpack for $40 and applies a 125.5% markup
Store B buys the backpack for $35 and applies a 140.2% markup
Store B sells the backpack for less ($84.07 vs. $90.20)
If a car travels 180 km in 2.5 hours, what is the speed in km/h?
72 km/h
A 750g bag of rice costs $6.75. What is the unit price per 100g?
$0.90 per 100g
boy reads 15 pages in 30 minutes. How many pages in 2 hours?
60 pages
A laptop costs $650. There is a 15.4% sale and then an extra $25 off. What’s the final price?
$524.90
A $200 product is marked up by 175.5%, and then a 10% discount is applied. What is the final price?
$495.90
A recipe calls for 3 cups of flour to 2 cups of sugar. How much sugar is needed for 12 cups of flour
8 cups of sugar
A 1.2kg bag of dog food costs $14.40. What is the price per 100g?
$1.20 per 100g
A car uses 8 L of gas to travel 96 km. How much gas is needed for 225 km
18.75 L