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Math Flashcards

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

Read the first 7 Math flashcards as text

  1. What is the y-intercept of the line y = 3x - 7?

    Answer: -7

    In slope-intercept form y = mx + b, the y-intercept b is -7.

  2. Simplify: 3(2x + 4) - 5x.

    Answer: x + 12

    Distribute to get 6x + 12 - 5x, which simplifies to x + 12.

  3. If the ratio of boys to girls in a class is 3:2 and there are 15 boys, how many girls are there?

    Answer: 10

    Each ratio unit equals 5 students, so girls = 2 × 5 = 10.

  4. What is the value of x in the proportion x/8 = 9/12?

    Answer: 6

    Cross-multiply: 12x = 72, so x = 6.

  5. What is the volume of a cube with side length 3?

    Answer: 27

    Volume = side^3 = 3^3 = 27.

  6. Solve the system: x + y = 10 and x - y = 4. What is x?

    Answer: 7

    Adding the equations gives 2x = 14, so x = 7.

  7. What is 3/4 expressed as a percent?

    Answer: 75%

    3 ÷ 4 = 0.75, which equals 75%.