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Math Grade 7 Ratios and Proportions Flashcards

6 cards from real SBAC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Math Grade 7 Ratios and Proportions flashcards as text

  1. A store sells 3 apples for $1.50. At this rate, how much do 7 apples cost?

    Answer: $3.50

    Unit rate: $1.50 ÷ 3 = $0.50 per apple. 7 × $0.50 = $3.50.

  2. A scale drawing uses 1 inch = 12 feet. If a room is 3.5 inches on the drawing, what is its actual length?

    Answer: 42 feet

    Multiply the drawing measurement by the scale factor: 3.5 inches × 12 feet/inch = 42 feet.

  3. A car travels 150 miles in 2.5 hours. What is its average speed in miles per hour?

    Answer: 60 mph

    Speed = distance ÷ time = 150 miles ÷ 2.5 hours = 60 miles per hour.

  4. What is 35% of 80?

    Answer: 28

    35% of 80 = 0.35 × 80 = 28. Or: 35/100 × 80 = 2800/100 = 28.

  5. Is the relationship between x and y proportional? x: 2, 4, 6, 8 and y: 5, 10, 15, 20.

    Answer: Yes, because the ratio y/x is constant at 5/2

    The ratios y/x are 5/2, 10/4, 15/6, 20/8 — all equal to 5/2 = 2.5. Constant ratio = proportional relationship.

  6. A shirt originally costs $45. It is on sale for 20% off. What is the sale price?

    Answer: $36

    20% of $45 = 0.20 × $45 = $9 discount. Sale price = $45 − $9 = $36.