0. 4; 40% 1. 875; 187. 5%
18, 480 ft
Example 1: Solving Proportions = = 16 = = 24 = =
Check It Out! Example 1 = = 15 = = 2. 5
Example 2: Solving Percent Problems You know the percent and the total number of voters, so you are trying to find the part of the whole (the number of voters who are planning to vote for that candidate).
Example 2 Continued So 405 voters are planning to vote for that candidate.
Check It Out! Example 2 You know the percent and the total number of students, so you are trying to find the part of the whole (the number of students that Clay High School has).
Check It Out! Example 2 Continued 35% = 0. 35 Clay High School has 1240 students.
Example 3: Fitness Application Use a proportion to find the length of his stride in meters. =
Example 3: Fitness Application continued Convert the stride length to inches. 1. 24 m 1 stride length 39. 37 in. 1 m 49 in. 1 stride length Ryan’s stride length is approximately 49 inches.
Check It Out! Example 3 Use a proportion to find the length of his stride in meters. =
Check It Out! Example 3 Continued Convert the stride length to inches. 1. 35 m 1 stride length 39. 37 in. 1 m 53 in. 1 stride length Luis’s stride length is approximately 53 inches.
Example 4: Scaling Geometric Figures in the Coordinate Plane
Example 4 Continued = 9 = 6
Example 4 Continued
Check It Out! Example 4
Check It Out! Example 4 Continued = 3 6 = 4
Check It Out! Example 4 Continued ● ● ●
Example 5: Nature Application 6 22 = 9 The house is 33 feet high.
Check It Out! Example 5 20 90 = 6 The tree is 27 feet high.
Lesson Quiz: Part I 1200 $0. 23
Lesson Quiz: Part II
Lesson Quiz: Part III 57. 6 ft
