Proportional relationships, signed number operations, expressions, equations and inequalities, scale drawings, circles and probability.
45 cards · basic cards · AI-written, checked twice. Edit anything.
- What does it mean for two ratios to be proportional?
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The ratios are equal or have the same value when simplified.- Solve the proportion: 2/3 = 8/x
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x = 12- If 3 apples cost $2.40, what is the unit rate (cost per apple)?
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$0.80 per apple- What is a unit rate?
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A rate where the denominator is 1 (the quantity of one item per unit).- What is the constant of proportionality?
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The ratio between two proportional quantities that always stays the same.- A car travels 150 miles on 5 gallons of gas. What is its rate in miles per gallon?
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30 miles per gallon- If y = 3x, is this a proportional relationship?
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Yes, because y is directly proportional to x with a constant ratio of 3.- If x and y are proportional and y = 6 when x = 2, what is y when x = 5?
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y = 15- What is -5 + 3?
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-2- What is -7 - 4?
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-11- What is -6 × 8?
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-48- What is 20 ÷ (-4)?
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-5- When you multiply two negative numbers, is the product positive or negative?
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Positive- What is the absolute value of -15?
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15- What is -3 - (-8)?
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