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22 November, 12:53

2) The sum of two numbers is 100. Their difference is 4. What are the two numbers?

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Answers (2)
  1. 22 November, 13:05
    0
    Answer: 48, 52

    Step-by-step explanation:

    The sum of the two numbers (x, y) is 100. This means that;

    x+y=100

    Their difference is 4, so;

    y=x+4

    Now, you can substitute that in for y;

    x + (x+4) = 100

    Simplify;

    2x+4=100

    2x=96

    x=48

    Now, we plug in the value of x to the second equation;

    y=48+4

    y=52
  2. 22 November, 13:22
    0
    48 and 52

    Step-by-step explanation:

    We have a pair of simultaneous equations and will solve these using substitution.

    x + y = 100 (1)

    x - y = 4 (2)

    Solve for x:

    x+y=100, x - y = 4

    x=52

    Substitute x with 52

    (52) + y = 100, (52) - y = 4

    Simplify:

    y = 48
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