Vocabulary
For each/every 100 parts
Percent
35%
0.35
What percent of 100 is 50?
50%
20% of 50
10
Original Price: $20
Percent Increase: 20%
New Price: $24
Letter used to represent the constant of proportionality
k
7%
0.07
24 is what percent of 80?
30%
35% of 96
33.6
Original Price: $53
Tax: 7%
Total Price: $56.71
One set of values are all multiplied by the same number to get another set of values
Proportional Relationship
125%
1.25
What percent of 12 is 1?
8.3%
5% of 23
1.15
Original Price: $65
Discount: 40%
New Price: $39
A rate per 1; a rate that compares a value to a single unit
Unit rate
0.3%
0.003
42 is what percent of 76?
55.26%
115% of 30
34.5
Original Price: $10
Discount: $20
Tax: 8%
$8.64
A number when multiplied by another number equals 1; the inverse of a number
Reciprocal
.015%
0.00015
What percent of 816 is 5?
0.61%
0.6% of 42
0.252
Original Price: $132
Tax: 9%
Tip: 20%
Total Price: $172.66