L16 Finding the Percentage cloned 3/6/2022

Last updated over 3 years ago
11 questions
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16.1: True or False: Percentages

Is each statement true or false? Be prepared to explain your reasoning.

25% of 512 is equal to 1/4 x 500.

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Is each statement true or false? Be prepared to explain your reasoning.

90% of 133 is equal to (0.9)⋅133.

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Is each statement true or false? Be prepared to explain your reasoning.

30% of 44 is equal to 3% of 440

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Is each statement true or false? Be prepared to explain your reasoning.

The percentage 21 is of 28 is equal to the percentage 30 is of 40

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16.2: Jumping Rope

A school held a jump-roping contest. Diego jumped rope for 20 minutes.
  1. Jada jumped rope for 15 minutes. What percentage of Diego’s time is that?
  2. Lin jumped rope for 24 minutes. What percentage of Diego’s time is that?
  3. Noah jumped rope for 9 minutes. What percentage of Diego’s time is that?
  4. Record your answers in this table. Write the quotients in the last column as decimals.

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What do you notice about the numbers in the last two columns of the table?

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16.3: Restaurant Capacity

A restaurant has a sign by the front door that says, “Maximum occupancy: 75 people.” Answer each question and explain or show your reasoning.

What percentage of its capacity is 9 people?

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A restaurant has a sign by the front door that says, “Maximum occupancy: 75 people.” Answer each question and explain or show your reasoning.

What percentage of its capacity is 51 people?

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A restaurant has a sign by the front door that says, “Maximum occupancy: 75 people.” Answer each question and explain or show your reasoning.

What percentage of its capacity is 84 people?

*Hint: If the new number is greater than the original number, is the percentage more or less than 100%?*

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Are You Ready For More?

Water makes up about 71% of the Earth’s surface, while the other 29% consists of continents and islands. 96% of all the Earth’s water is contained within the oceans as salt water, while the remaining 4% is fresh water located in lakes, rivers, glaciers, and the polar ice caps.

If the total volume of water on Earth is 1,386 million cubic kilometers, what is the volume of salt water? What is the volume of fresh water?

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A jet plane can carry up to 200,000 liters of fuel. It used 130,000 liters of fuel during a flight. What percentage of fuel capacity did it use on this flight?