Definitions
Conversions
Computation
Formulas
Images
100
A comparison of two quantities
Ratio
100
Turn into percent:
1/25
4%
100
What is 12% of 50
6
100
Turn decimal into percent
Multiply by 100 (move decimal point two spaces to the right)
100
8, 36
200
A rate where one of the numbers is 1
Unit Rate
200
Write as a fraction in simplest form:
92%
23/25
200
40% of what number is 82
205
200
Turn 13:39 into a unit rate
1:3
200
What percent is pictured?
51
300
The Latin word for 100
Cent
300
Write as a decimal:
1/8
0.125
300
A pair of shoes that cost $135 are on sale for 20 percent off. What is the final price?
$108
300
The formula for percent decrease
original number - new number
divided by original
300
What is the original price of the shoes?
55
400
Two fractions that equal one another
Proportion
400
Turn into percent:
13/15
86.6% or 86.7%
400
40 is what percent of 120
33.3%
400
The proportion formula using three variables
x/100 = y/z
400
6.25
500
For simple interest, this is the name for the original amount of money
Principal
500
Write as a fraction is simplest form:
6.2%
31/500
500
You put $1,200 in a savings account that earns 2.5% per year. How much money do you have total after four years?
1320
500
The formula for simple interest
I = Prt
500
What % is the Senator polling at now?
16.2