Fractions to Percents
Percent Proportions
Word Problems
Percent Change
Simple Interest
100
2/4
50%
100
What is the cheater proportion to help with easy percent proportions?
Percent/100 = is/of
100
There are 12 girls in a class. The girls are 30% of the entire class. How many students are in the class?
40 students
100
What is the formula for percent change?
P = change/original
100
What does I stand for?
What is Interest
200
2/3
66.6%
200
What is 10% of 35?
3.5
200
A bike costs $128. Tax is 9%. How much will the tax be?
$11.52
200
12 to 24
100%
200
What do the p and t stand for?
Principal and Time
300
4/9
44.4%
300
What is 12% of 48?
5.76
300
A band has 15 trumpet players. There are 45 members in the band. What percent are trumpet players?
33.3%
300
$5 to $35
700%
300
What does the r stand for and what do you have to do with the r BEFORE you calculate interest?
Rate and move the decimal point!
400
12/17
70.6%
400
24 is what percent of 30?
80%
400
37% of students ride the bus to school. There are 918 students in the school. How many ride the bus?
339.66
400
$64 to $41
35.9%
400
The deposit was $4500 at 5.2% interest for 5 years. How much did the bank pay in interest?
$1170
500
21/15
140%
500
Find (100% of 240) - 35.
205
500
A computer costs $499. Tax is 6%. What is the TOTAL cost for the computer?
$528.94
500
100 to 1
99%
500
Starting deposit was $350 at 5% interest for 4 years. What is the final BALANCE in the account?
$420
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