Proportions

  1. Solve: 3/2 =12/x
    x = 24/3 = 8
  2. Solve: 2/x = 5/8
    x = 16/5 = 3.2
  3. Solve x/5 = -9/15
    x = -45/15 = -3
  4. If you can type 300 words in 5 minutes, how long will it take to type 2000 words?
    300/5 = 2000/x
    x = 10000/300 = 100/3 = 33.3 minutes
  5. If it takes 4 eggs to make 36 muffins, how many muffins can you make with 5 eggs?
    4/36 = 5/x
    x = 180/4 = 45