Proportions method
40% of what number is 15?
37.5
24 is what percent of 60?
40%
Find the tax and total cost of the purchase.
Computer: $500
Tax: 6%
tax : $30
total cost: $530
a) Find the amount of change.
b) Find the percent change.
Specify whether it is an markup or discount.
from $40 to $28
30% discount
Find the discount amount.
5% off $54
$2.70
How many more weeks to summer break?!
6 weeks!
24 is 6% of what number?
4,00
8 is 40% of what number?
20
Find the tax and total cost of the purchase.
Chair: $350
Tax: 8%
tax: $28
total cost: $378
a) Find the amount of change.
b) Find the percent change.
Specify whether it is a discount or markup.
from $50 to $115
130% markup
Find the discount amount.
15% off $270
Discount amount: $40.50
How long has Miss Lee been teaching in NCS?
3 years, 6 years, 9 years
6 years
What percent of 75 is 27?
36%
What number is 70% of 120?
84
Find the tip and total cost.
Food bill: $340
Tip: 22%
Tip: $74.80
Total cost: $414.8
a) Find the amount of change.
b) Find the percent change.
Specify whether it is an increase or decrease.
from 75 to 27
64% decrease
Find the discount amount.
8% off $120
$9.60
What instrument did Miss Lee use to play?
Piano or Violin
17 is what percent of 68?
25%
30 is what percent of 120?
25%
Find the tax and total cost of the purchase.
Sofa: $860
Tax: 7%
tax: $60.20
total cost: $920.20
a) Find the amount of change.
b) Find the percent change.
Specify whether it is an increase or decrease.
from $250 to $280
12% increase
Find the sale price.
15% off $210
$178.50
How many siblings does Miss Lee have?
2
2 is what percent of 16?
12.5%
112 is 56% of what number?
200
Find the total cost of the purchase.
Dress: $185
Tax: 7%
Tax : $12.95
Total cost: $197.95
a) Find the amount of change.
b) Find the percent change.
Specify whether it is an increase or decrease.
from 200 lbs to 152 lbs
a) 48 lbs
b) 24% decrease
Find the sale price of a $300 suit discounted at 25%.
Sale price: $225
What is Miss Lee's favorite color?
Red , Blue , Pastel , Green
Pastel
John walked 1/4 of the 300 dogs at the shelter.
a) what percent of the dogs did he walk?
b) how many dogs did he walk?
a) 25%
b) 75
proportions
If 14 out of 40 engineers live in Coastal Creek, what percent of engineers live in Coastal Creek?
35%
proportions method
Sally earned 180 points on her science project. If her grade was 80%, how many points was the project worth?
225 points
a) Find the amount of change.
b) Find the percent change.
Specify whether it is an increase or decrease.
from 500 to 380
76% decrease
Find the sale price of a $1250 armchair discounted at 18%.
$225