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Lesson Menu. Main Idea and New Vocabulary Example 1: Convert Rates Example 2: Convert Rates Example 3: Convert Derived Units. Convert units of measure between derived units to solve problems. derived unit. Main Idea/Vocabulary. Multiply by. Divide out common units. Convert Rates.

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Lesson menu
Lesson Menu

Main Idea and New Vocabulary

Example 1: Convert Rates

Example 2: Convert Rates

Example 3: Convert Derived Units


Main idea vocabulary

  • derived unit

Main Idea/Vocabulary


Example 1

Multiply by . problems.

Divide out common units.

Convert Rates

TRAINS The Shinkansen passenger train of Japan travels at a rate of 300 kilometers per hour. How many meters per hour is this?

You can use 1 kilometer = 1,000 m to convert the rate.

Example 1


Example 11

Simplify. problems.

Simplify.

Convert Rates

Answer: So, the train travels at a rate of 300,000 meters per hour.

Example 1


Example 1 cyp

DRIVING problems. During one driving trip, Eric averaged 62 miles per hour. How many miles per minute did he average?

A. 3,720 mi/min

B. 37.20 mi/min

C. 10.3 mi/min

D. 1.03 mi/min

Example 1 CYP


Example 2

Multiply by problems.

Divide out common units.

Convert Rates

RUNNING Kelley runs at a speed of 9 miles per hour. How many miles per second is this?

You can use 1 hour = 60 minutes and 1 minute = 60 seconds to convert the rates.

Example 2


Example 21

Simplify. problems.

Simplify.

Simplify.

Convert Rates

Answer: Kelley runs at a speed of 0.0025 mile per second.

Example 2


Example 2 cyp

DRIVING problems. Diante’s grandfather averages a speed of 15 miles per hour when driving through town. How many miles per second is this?

A. 54,000 mi/s

B. 5,400 mi/s

C. 0.25 mi/s

D. 0.004 mi/s

Example 2 CYP


Example 3

Multiply by distance and time unit ratios. problems.

Convert Derived Units

CARS A car travels at an average speed of 60 miles per hour on a trip. What is the car’s speed in feet per second?

You can use 1 mile = 5,280 feet, 1 hour = 60 minutes, and 1 minute = 60 seconds to convert the rates.

Example 3


Example 31

Divide out common units. problems.

Simplify.

Simplify.

Simplify.

Convert Derived Units

Answer: The car travels an average of 88 feet per second.

Example 3


Example 3 cyp

MOTORCYCLES problems. Amotorcycle travels at an average speed of 56 miles per hour on a trip. What is the motorcycle’s speed in feet per minute?

A. 17,740,800 ft/min

B. 295,680 ft/min

C. 4,928 ft/min

D. 82.1 ft/min

Example 3 CYP