Open Up - Grade 8 - Mathematics - Unit 5 - Lesson 17

A graduated cylinder that is 24 cm tall can hold 1 L of water. What is the height of the 500 ml mark? Recall that 1 liter (L) is equal to 1000 milliliters (ml).

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A graduated cylinder that is 24 cm tall can hold 1 L of water. The 250 ml mark? Recall that 1 liter (L) is equal to 1000 milliliters (ml).

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An ice cream shop offers two ice cream cones. The waffle cone holds 12 ounces and is 5 inches tall. The sugar cone also holds 12 ounces and is 8 inches tall. Which cone has a larger radius?

• The Waffle Cone has a larger radius.
• The Sugar Cone has a larger radius.

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A 6 oz paper cup is shaped like a cone with a diameter of 4 inches. How many ounces of water will a plastic cylindrical cup with a diameter of 4 inches hold if it is the same height as the paper cup?

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Lin’s smart phone was fully charged when she started school at 8:00 a.m. At 9:20 a.m., it was 90% charged, and at noon, it was 72% charged.When do you think her battery will die?

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Lin’s smart phone was fully charged when she started school at 8:00 a.m. At 9:20 a.m., it was 90% charged, and at noon, it was 72% charged.Is battery life a function of time? If yes, is it a linear function?

• Yes, it is a linear function.
• No, it is not an linear function.

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