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 Flashcard: Chapter Notes: Ratios and Rates 40 Flashcards |
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A ratio compares two quantities of the same ___? |
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Unit |
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What is the primary difference between a ratio and a rate? |
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A ratio compares quantities with the same unit, while a rate compares quantities with different units. |
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Equivalent ratios can be found by expressing them as equivalent ___? |
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Fractions |
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Calculate the unit rate if a car travels 150 miles in 3 hours. |
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50 miles per hour |
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If a recipe calls for 2 cups of flour for every 3 cups of sugar, the ratio of flour to sugar is ___? |
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2 to 3 |
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True or False: A rate must always express a comparison with a second quantity of 1. |
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False. A rate does not have to have a second quantity of 1, but a unit rate does. |
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What is the method to convert from a larger unit to a smaller unit? |
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Multiply by the appropriate conversion factor. |
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Fill in the blank: A unit rate is a special type of rate where the second amount is ___? |
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1 |
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Riddle: I compare quantities but only use the same unit. What am I? |
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A ratio |
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Convert 5 feet to inches. |
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60 inches |
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If 4 gallons equal ___ quarts, how many quarts are in 2 gallons? |
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8 quarts |
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What is the unit rate for 80 miles traveled in 4 hours? |
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20 miles per hour |
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True or False: 10 : 15 and 2 : 3 are equivalent ratios. |
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True |
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How do you find equivalent ratios from a given ratio? |
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Express the ratio as a fraction and multiply or divide both the numerator and denominator by the same number. |
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If Giovanni's Grocery Store charges $12 for 3 pounds of nuts, what is the unit rate per pound? |
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$4 per pound |
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Fill in the blank: To convert from a smaller unit to a larger unit, you must ___? |
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Divide |
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Convert 3.5 pounds to ounces. |
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56 ounces |
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Riddle: I show how much of one item is related to another, but I can use different units. What am I? |
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A rate |
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What is the equivalent ratio for 6 : 9? |
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2 : 3 |
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If 30 inches are converted to feet, the answer is ___ feet and ___ inches. |
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2 feet and 6 inches |
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Completed! Keep practicing to master all of them. |
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