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McGraw-Hill Math Grade 7 Answer Key Lesson 21.4 Circle Graphs
Exercises
INTERPRET
Question 1.
Does the circle graph below support the idea that a large percentage of money spent on education is applied to non-instructional purposes? Explain your answer.
Answer:
No, only 4%.
Explanation:
The circle graph above shows the amount spent on education.
The idea does not support that a large percentage of money spent on education is applied to non-instructional purposes are only 4% of the total amount spent on education.
Question 2.
The graph below represents the distribution of colors in a bag of candies Should Patrick expect to pick an orange piece of candy if he only gets one pick? Explain your answer.
Answer:
No,
Explanation:
The distribution of colors in a bag of candies should Patrick expect is more likely to pick,
blue, green or red colors as the chance of picking of orange is less.
Question 3.
The circle graph below shows sales for the prior year at a popular shoe store in Dallas. According to the chart, during what month would the manager need the most employees working in the store? During what month would she need the fewest? Explain your answer.
Answer:
More employees in January and,
the fewest in February.
Explanation:
From the above given graph it is clearly shown that the manager need the most employees,
in January and the fewest in February to work in the store.
Question 4.
The circle graph below represents Maria’s favorite types of movies. What 2 genres, when added together, make up half of the movies Maria watches?
Answer:
Romance and Comedy,
Romance and Sci-fi.
Explanation:
The circle graph below represents Maria’s favorite types of movies,
when we add Romance and Comedy,
Romance and Sci-fi it make up half or 50% of the movies Maria watch.
Question 5.
Below is a circle graph showing a breakdown of some of the common toppings on a pizza. The crust and the cheese make up what percent of the pizza? How did you reach this answer?
Answer:
75% subtract the percentages that we know from 100%.
Explanation:
Above circle graph shows the breakdown of some of the common toppings on a pizza.
When we add the percentages of tomato sauce, mushrooms and sausages,
we get 12.5% + 5% + 7.5% = 25%
The percentage of crust and the cheese = total % – given %
100% – 25% = 75%
Question 6.
Below is a graph showing the costs for a manufacturer in New York City. Does it make sense that she wants to cut over 20% of her costs by focusing largely on reducing the budget for tools? Explain your answer.
Answer:
No, cutting tools only account for 3% of the total.
Explanation:
she wants to cut over 20% of her costs by focusing largely on reducing the budget for tools,
but cutting tools only account for 3% of the total as shown in the circle graph.
Question 7.
If you eliminate the two smallest sections of the circle graph below, what percentage of the total would you have left?
Answer:
91%
Explanation:
The two smallest sections of the circle are 4% and 5% = 9%
Total percentage of circle graph = 100%
100 – 9 = 91 %
Question 8.
According to the information in the circle graph below, is there one type of pie that is preferred by a majority of people? Explain your answer.
Answer:
No,
Explanation;
When we observe The Pie preferences from the above circle graph,
the largest category is Apple at 36%, which is not more than 50%.