One number is 1/4 of another number. The sum of the two numbers is 25. Find the two numbers. Use a c

Discussion in 'Calculator Requests' started by math_celebrity, Apr 4, 2019.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    One number is 1/4 of another number. The sum of the two numbers is 25. Find the two numbers. Use a comma to separate your answers.

    Let the first number be x and the second number be y. We're given:
    1. x = 1/4y
    2. x + y = 25
    Substitute (1) into (2)
    1/4y + y = 25

    Since 1/4 = 0.25, we have:
    0.25y + y = 25

    Type this equation into the search engine to get:
    y = 20

    Now, substitute this into (1) to solve for x:
    x = 1/4y
    x = 1/4(20)
    x = 5

    The problem asks us to separate the answers by a comma. So we write this as:
    (x, y) = (5, 20)
     

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