1. Splash Screen

2. Over Lesson 6–2 5-Minute Check 1 A.Her rate on Monday was 2 miles per hour slower than her rate on Tuesday. B.Her rate on Tuesday was 2 miles per hour slower than her rate on Monday. C.Her rate on Monday was the same as her rate on Tuesday. D.Her rate on Tuesday was 2 miles per hour faster than her rate on Monday. On Monday, Ms. Moseley drove 340 miles in 5 hours. On Tuesday, she drove 198 miles in 3 hours. Based on these rates, which statement is true?

3. Then/Now You have already learned to find unit rates. (Lesson 6–2) Convert between systems of measurement.

4. Vocabulary dimensional analysis – the process of including units of measurement when computing

5. Concept

6. Example 3 Convert Measurements Between Systems A. Convert 4 inches to centimeter. Round to the nearest hundredth. Use 1 inch ≈ 2.540 centimeters. Divide out common units, leaving centimeters. Simplify. 4 in ≈ ≈ 10.16 cm Answer: So, 4 inches is approximately 10.16 centimeters. 4 in 1 x 2.540 cm 1 in

7. Example 3 Convert Measurements Between Systems B. Convert 15 meters to feet. Round to the nearest hundredth. Use 1 m ≈ 3.279 ft. Divide out common units, leaving feet. Simplify. Answer: So, 15 meters is approximately 49.19 feet.

8. Example 3 A.0.153 m B.1.53 m C.1.70 m D.16.40 m A. About how many meters are equal to 5 feet?

9. Example 3 A.3.31 qt B.7.66 qt C.7.40 qt D.14.80 qt B. About how many quarts are equal to 7 liters?