Ratios Rates Conversions You will Find Ratios Rates

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Ratios, Rates & Conversions You will: Find Ratios & Rates Convert Units & Rates

Ratios, Rates & Conversions You will: Find Ratios & Rates Convert Units & Rates

Ratio: Compares two numbers by division Rate: A ratio that compares quantities measured in

Ratio: Compares two numbers by division Rate: A ratio that compares quantities measured in different units Unit Rate: A rate with a denominator of 1

Problem 1 a) You are shopping for T-shirts. Which store offers the best deal?

Problem 1 a) You are shopping for T-shirts. Which store offers the best deal? Store A: $25 for 2 shirts Store B: $45 for 4 shirts Store C: $30 for 3 shirts

If Store B lowers its price to $42 for 4 shirts, does the solution

If Store B lowers its price to $42 for 4 shirts, does the solution to Problem 1 change? Explain.

Conversion Factor: A ratio of two equivalent measures in different units. Always equal to

Conversion Factor: A ratio of two equivalent measures in different units. Always equal to 1. To convert from one unit to another, such as yards to feet, you multiply the original unit by a conversion factor that produces the desired unit.

Problem 2 Convert each given amount into the given units. a) 330 min to

Problem 2 Convert each given amount into the given units. a) 330 min to hours b) 15 kg to grams

Problem 2 Convert each given amount into the given units. c) 1250 cm to

Problem 2 Convert each given amount into the given units. c) 1250 cm to meters d) 5 ft 3 in to inches

Problem 2 Convert each given amount into the given units. e) 5 lb 3

Problem 2 Convert each given amount into the given units. e) 5 lb 3 oz to ounces f) 8 ft to yards

Homework Assignment Textbook Page 119; #1, 2, 5, 6, 7, 8, 9 – 16

Homework Assignment Textbook Page 119; #1, 2, 5, 6, 7, 8, 9 – 16 All ***Bring Calculator to Class Tomorrow *** Use Page 814 for any conversions you do not already know. You will be held responsible for knowing them on the next quiz.

Ratios, Rates & Conversions Continued… You will: Convert Units & Rates

Ratios, Rates & Conversions Continued… You will: Convert Units & Rates

Problem 3 a) The CN Tower in Toronto, Canada, is about 1815 feet tall.

Problem 3 a) The CN Tower in Toronto, Canada, is about 1815 feet tall. About how many meters tall is the tower? Use the fact that 1 m ≈ 3. 28 feet.

Problem 3 b) A building is 1450 feet tall. How many meters tall is

Problem 3 b) A building is 1450 feet tall. How many meters tall is the building? Use the fact that 1 m ≈ 3. 28 feet. c) Monetary exchange rates change from day to day. On a particular day, the exchange rate for dollars to euros was about 1 dollar = 0. 63 euro. About how many euros could you get for $325 on that day?

You can convert rates. For example: miles per hour to feet per minute Since

You can convert rates. For example: miles per hour to feet per minute Since rates compare measures in two different units, you must multiply by two conversion factors to change both of the units

Problem 4 a) A student ran the 50 – yard dash in 5. 8

Problem 4 a) A student ran the 50 – yard dash in 5. 8 seconds. At what speed did the student run in miles per hour? Round your answer to the nearest tenth.

Problem 4 b) An athlete ran a sprint of 100 feet in 3. 1

Problem 4 b) An athlete ran a sprint of 100 feet in 3. 1 seconds. At what speed was the athlete running in miles per hour? Round to the nearest mile per hour.

Problem 4 c) A car is traveling at 55 miles per hour. What is

Problem 4 c) A car is traveling at 55 miles per hour. What is the car’s speed in feet per second?