Over Lesson 6–2

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?

You have already learned to find unit rates. (Lesson 6–2)

• Convert between systems of measurement.

• dimensional analysis – the process of including units of measurement when computing

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

x2.540 cm 1 in

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.

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?

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?