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Applying Rates

Applying Rates. Chapter 3. Warm-Up. 32 days = ______ hours 1 second = ______ minute 7 yards = ______ inches Write the given fraction in simplest form. A rate is a ratio that compares two units. 120 miles in 2 hours A unit rate is a rate per one given unit. 60 miles per hour.

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Applying Rates

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  1. Applying Rates Chapter 3

  2. Warm-Up • 32 days = ______ hours • 1 second = ______ minute • 7 yards = ______ inches • Write the given fraction in simplest form.

  3. A rate is a ratio that compares two units.120 miles in 2 hours • A unit rate is a rate per one given unit.60 miles per hour

  4. Suppose a spacecraft leaves Earth at an average rate of 0.225 km/s. Express its rate of ascent in kilometers per minute.

  5. Highway traffic and safety engineers have some general guidelines they have developed over the years and hold now as standards. • If you are moving at 44 ft/s, it will take a minimum of 109 feet to stop your car in an emergency. • How many miles per hour is 44 ft/s?

  6. Highway traffic and safety engineers have some general guidelines they have developed over the years and hold now as standards. • If you are moving at 88 ft/s, it will take a minimum of 304 feet to stop your car in an emergency. • How many miles per hour is 88 ft/s?

  7. During its first ten minutes of flight, the Concorde climbs from ground level to the altitude shown by point B on the graph. Estimate the Concorde’s rate of change in altitude during this time period.

  8. The graph shows how the altitude of a hot air balloon changes during a 15-minute test flight. • Estimate the balloon’s rate of change in altitude during this time.

  9. Mt. Everest • Mt. Everest is 29,035 ft high. How many miles is this?

  10. Speed of Light • The speed of light is approximately 186,282.397 miles per second. What is the speed of light in miles per hour?

  11. Lance Armstrong • For his third win, Lance Armstrong won the Tour by covering 3,462 km at an average speed of more than forty km/hr—the third-fastest time in the history of the event. How far is 3,462 km in miles? 1 mi = 1.609344 km

  12. Lance Armstrong • For his third win, Lance Armstrong won the Tour by covering 3,462 km at an average speed of more than forty km/hr—the third-fastest time in the history of the event. How fast is 40 km/h in mph? 1 mi = 1.609344 km

  13. Coquihalla Highway • The speed limit on the Coquihalla Highway in British Columbia is 110 km/h. What is the equivalent speed in units of mi/h, rounded down to the nearest multiple of 5? 1 mi = 1.609344 km

  14. Homework

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