Today’s Plan: -Warm Up & Correct Homework -Percent -Assignment
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Today’s Plan: -Warm Up & Correct Homework -Percent -Assignment LT: I will calculate percents from a hundreds grid or circle graph. 04/14/10 Percent Calculations #28 Warm Up Write each fraction as a percent. 1. 2. 3. Write each percent as a fraction in lowest terms. 4. 20% 5. 25% 6. 60% 75% 10% 40% 3 4 1 10 2 5 1 5 1 4 3 5
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04/14/10 Percent Calculations#28. 1. 1. 3. 3. 2. 4. 5. 5. 5. 4. 1. 10. Warm Up Write each fraction as a percent. 1.2.3. Write each percent as a fraction in lowest terms. 4. 20% 5. 25% 6. 60%. 75%. 10%. 40%. Today’s Plan: -Warm Up & Correct Homework - PowerPoint PPT Presentation
Transcript of Today’s Plan: -Warm Up & Correct Homework -Percent -Assignment
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Warm UpWrite each fraction as a percent.
1. 2. 3.
Write each percent as a fraction in lowest terms.
4. 20% 5. 25% 6. 60%
75% 10% 40%34
110
25
15
14
35
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Correct Homework
1. 21 is 42% of what number?
2. 73 is what percent of 292?
3. 112% of what number is 84?
4. 13.4 is what percent of 1340?
5. An ad shows a DVD player on sale for 75% of its original price. If its original price was $242, what is the sale price?
25%
50
Insert Lesson Title Here
75
1%
Course 2
6-4 Solving Equations Containing Percents
$181.50
Course 2
6-1 Fractions, Decimals, and Percents
A percent is the ratio of a number to 100. The symbol % is used to indicate that a number is a percent.
= 6%6100
The word percent means “per hundred.” So 6% means “6 out of 100.”
Reading Math
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Active Expressions
Write the percent modeled by each grid.
A. B.
Additional Example 1: Modeling Percents
Course 2
6-1 Percents
shaded total
_______ 32100
___ = 32% shaded total
_______ 66100
___ = 66%
Write the percent modeled by each grid.
A. B.
Check It Out: Example 1
Course 2
6-1 Percents
shaded total
_______ 44100
___ = 44% shaded total
_______ 75100
___ = 75%
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
36%Write the percent modeled by the grid.
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
A circle graph, also called a pie chart, shows how a set of data is divided into parts.
The entire circle contains 100% of the data.
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Leon surveyed 30 people about pet ownership. The circle graph shows his results. Use the graph to answer each question.
How many people own dogs only?
The circle graph shows that 20% of the 30 people own dogs only.
20% of 30 = 0.2 • 30
= 6
6 people own dogs only.
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Leon surveyed 30 people about whether they own pets. The circle graph shows his results. Use the graph to answer each question.
How many people own both cats and dogs?Since 20% is 6 people, 10% is 3 people.
3 people own both cats and dogs.
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Fifty students were asked which instrument they could play. The circle graph shows the responses. Use the graph to answer each question.
How many students do not play an instrument?
piano20%
no instrument50%
flute10%
drum20%
The circle graph shows that 50% of 50 students do not play an instrument.
50% of 50 = 0.5 • 50
= 25
25 students do not play an instrument.
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Fifty students were asked which instrument they could play. The circle graph shows the responses. Use the graph to answer each question.
Ten students said they play the piano. How many play the flute?
Since 20% is 10 students, 10% is 5 students.
Five students play the flute. piano20%
no instrument50%
flute10%
drum20%
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28Use the circle graph to answer questions 1-4.
1. Which group of CDs sold the most?
2. What percent of the CD sales are country?
3. Which type of CD sells the least?
4. If a total of 500 CD’s are sold, how many are Jazz?
rock
27%
rap
55
41%
Today’s Plan:-Warm Up & Correct Homework-Percent -Assignment
LT: I will calculate percents from a hundreds grid or circle graph.
04/14/10 Percent Calculations #28
Assignment
Collect data you can use to make a circle graph.
