Ask Question
3 October, 13:43

John has 54 marbles. some are red and some are black. The ratio of the number red marbles to black are 7:2. How may more red than black are there?

+3
Answers (1)
  1. 3 October, 15:44
    0
    Red : Black : Total

    7 : 2 : 7+2

    7 : 2 : 9

    9x = 54

    1x = 54:9 = 6

    7x = 7x6 = 42

    2x = 2x6 = 12

    Red : Black

    42 : 12

    42 - 12 = 30

    There are 30 more red than black
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “John has 54 marbles. some are red and some are black. The ratio of the number red marbles to black are 7:2. How may more red than black are ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers