Page 117 - Math Course 3 (Book 2)
P. 117
Properties of Proportions
Your Turn!
Solve Proportions by Using Cross Products
13.5 b 7n – 1 15.5
Solve = . Solve = .
42 14 8 2
A. 0.65 A. 9
B. 4.5 B. 8.9
C. –14.5 C. 3
D. 147 D. 1.8
Answer Answer
Solve Problems Using Proportions
Two large cylindrical containers are in proportion. The height of the larger container is 25 meters with a
diameter of 8 meters. The height of the smaller container is 7 meters. Find the diameter of the smaller
container.
A. 0.6 m
B. 2.24 m
C. 2.52 m
D. 28.57 m
Answer
Skill Practice!
Proportions
1. FOOTBALL A tight end scored 6 touchdowns in 14 games. Find the ratio of touchdowns per game.
2. EDUCATION In a schedule of 6 classes, Marta has 2 elective classes. What is the ratio of elective to
non-elective classes in Marta’s schedule?
3. BIOLOGY Out of 274 listed species of birds in the United States, 78 species made the endangered list. Find
the ratio of endangered species of birds to listed species in the United States.
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