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Math 7 Exercise Solving on Page 99, Connect Knowledge Book is a valuable learning resource for the Pie Chart lesson. This material provides detailed solutions to exercises 5.6, 5.7, 5.8, 5.9 following the curriculum in the textbook. Students can compare their work to ensure accuracy.
Explore multiple quality Math 7 study materials
- Math 7 Exercise Solving in Connect Knowledge Book
- Math 7 Exercise Solving on pages 100, 101 of Horizon of Creativity Book - Exercise 2: Pie Chart
- Math 7 Exercise Solving on page 25 of Kite Book - Exercise 4: Pie Chart
Math 7 Exercise Solving on Page 99, Connect Knowledge Book with Real-life Connections
Pie Chart
1. Solve Exercise 5.6 Page 99 Math Textbook Grade 7
Problem: Given Figure 5.18.
a) Identify the components of this chart.
b) How many sectors are there in the circle of the chart? What data does each sector represent?
c) Which continent has the largest population? The smallest?
d) Given that in 2020 the total population of the 5 continents was 7773 million people.
Calculate the population of each continent.
Solution Guide:
+ Observe the chart and answer questions a, b, c.
+ To find a% of b, multiply a by b then divide by 100.
Answer:
a) The components of the chart represent the population proportions of the continents: Asia, Africa, Europe, Americas, Australia.
b) The circle is divided into 5 sectors, each sector representing the population proportion of each continent.
c) Asia has the largest population. Australia has the smallest population.
2. Solve Exercise 5.7 Page 99 Math Textbook Grade 7
Problem: An surveyed the favorite pets of students in the class and obtained the following results in the table:
Complete Figure 5.19 in the notebook to represent the statistical table above.
Guidance:
Calculate the proportions of favorite pets to complete Figure 5.19.
Answer:
3. Solve Exercise 5.8 Page 99 Math Textbook Grade 7
Problem: Figure 5.20 shows the proportion of blood group members in a blood donation team consisting of 200 volunteers.
Question:
a) How many people have blood type A, how many people have blood type B?
b) How many people have blood type A or O?
Solution Guide:
a) To find a% of b, multiply a by b then divide by 100.
b) The number of people with blood type A or O = Total number of people with blood type A plus the number of people with blood type O.
Answer:
4. Solve Exercise 5.9 Page 99 Math Textbook Grade 7
Problem: Based on the data collected on the swimming skills of primary school students (H.5.12), estimate how many of the 800 primary school students in a commune in that district are proficient swimmers, how many students do not know how to swim.
Solution Guide:
To find a% of b, multiply a by b then divide by 100.
Answer:
Here is the solution guide for solving Math 7 exercise on page 99. Students, refer to solving Math 7 exercise on page 105 and review solving Math 7 exercise on page 92 to strengthen your understanding.
- Solve Math 7 exercise on page 105: Line Graph
- Solve Math 7 exercise on page 92: Data Collection and Classification
