Percent Basics
What percent does 25 represent out of 100?
25%
Convert .32 to a percent
32%
20%
10% of a class of 30 students like soccer. How many students is that?
3
Find a ratio equivalent to 2:5
4:10, 6:15, etc.
Which is greater: 40% or .4?
They are equal!
Convert 9802% to a decimal
98.02
What percent is 34 of 50?
68%
A shirt costs $20 and is on sale for 25% off. How much is the discount?
$5
Ratio of red to blue tiles is 3: 4 How many blue tiles are there if there are 12 red tiles?
16
True or False:
1% means 1 out of 10
False
35%
A 350 mL beaker is filled with a 12.8% acid solution, how many mL are acid?
44.8
Rose brought in a tray of caramel brownies and walnut brownies. The tray had a total of 60 brownies, of which 90% were caramel. How many caramel brownies did Rose bring?
54
5:6 = _______: 24
20
What percent is a fifth of a whole?
20%
12/25
300 represents 40% of what number?
750
Philip's class voted on whether or not to do science fair projects in groups. 30% of the 20 votes were in favor of working in groups. How many votes were in favor?
6
A recipe uses flour and sugar in a ratio of 6:11. If the recipe uses 66 cups of sugar, how many cups of flour are needed?
36
Explain what 120% means in words
More than the whole
Convert 20/80 to a decimal and percent.
.25, 25%
All of the students in the sixth grade either take the bus or walk to school.
• 40% of the students take the bus.
• 180 students walk to school.
How many students are in the sixth grade?
300
Which is greater: 30% of 50 or 50% of 30?
They are both 15.
A streaming service uses 420 MB of data in 7 minutes
What is the unit rate in megabytes per minute?
60