30% of 120 is
36
Ayla spelled 90% of the words on the spelling test correctly. If the test had a total of 20 questions, how many of the words did she spell incorrectly?
2 questions
What is the ratio (visual) we use to find the part, whole or a percent of a number?
part %
____ = ____
whole 100
How do you find the missing part in a ratio?
Cross multiply and divide
What is 20% of 55?
11
Junior made 4 out 5 shots in practice. What is the percentage of shots that he made?
80%
Dylan baked 20 cookies. 6 of the cookies were chocolate chip. What percentage of the cookies were chocolate chip?
What are we looking for part, whole, or percentage?
Percentage
75% of ___ is 84
112
40% of ____ is 80
200
Brooke baked 100 muffins. Of all the muffins she baked, 40% were banana. How many banana muffins did Brooke bake?
40
35% of the 6th grade class turned in their homework. There are 21 kids in total? How many students turned in their homework?
What are we looking for part, whole or percent?
Part
What percentage of the grid is shaded in?
35%
What is 45% of 300?
135
Write 75 to 100 as a fraction, decimal, and percent.
75/100 , .75 , and 75%
Juan has a collection of marbles. In his collection 45% of the marbles are red. How many marbles does Juan have?
What are we looking for part, whole or percent?
Whole
Brianna and Jen each bought new shoes for $40.
Brianna sold her shoes to the thrift store for 25% less than the original price.
Jen sold her shoes to the thrift store for 40% less than the original price.
How much more money did Brianna receive than Jen?
Brianna received $6 more than Jen.