Grade 7 McGraw Hill Glencoe - Answer Keys Answer keys Chapter 2: Percents; Lesson 3: The Percent Proportion

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Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 2: Percents; Lesson 3: The Percent Proportion

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Find each number. Round to the nearest hundredth if necessary.

Use the table shown.

Question 13 (request help)

a. Mercury’s radius is what percent of Jupiter’s radius?

Question 13 (request help)
b. If the radius of Mars is about 13.7% of Neptune’s radius, what is the radius of Neptune?

Question 13 (request help)
c. Earth’s radius is about 261.4% of Mercury’s radius. What is the radius of Earth?

Question 14 (request help)
Reason Inductively Seventy percent of the 100 students in a middle school cafeteria bought their lunch. Some of the students that bought their lunch leave the cafeteria to attend an assembly. Now only 60% of the remaining students bought their lunch. How many students are remaining in the cafeteria? Explain.

Question 15 (request help)
Persevere with Problems Without calculating, arrange the following from greatest to least value. Justify your reasoning.
20% of 100, 20% of 500, 5% of 100

Question 16 (request help)
Model with Mathematics Write a real -world problem involving a percent that can be solved by using the proportion \(\frac{3}{b}\)=\(\frac{60}{100}\) .Then solve the proportion.

b =