One positive number is one-fifth of another number. The difference between the two numbers is 192, f

Discussion in 'Calculator Requests' started by math_celebrity, Jan 2, 2020.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    One positive number is one-fifth of another number. The difference between the two numbers is 192, find the numbers.

    Let the first number be x and the second number be y. We're given two equations:
    1. x = y/5
    2. x + y = 192
    Substitute equation 1 into equation 2:
    y/5 + y = 192

    Since 1 equals 5/5, we rewrite our equation like this:
    y/5 = 5y/5 = 192

    We have fractions with like denominators, so we add the numerators:
    (1 + 5)y/5 = 192
    6y/5 = 192

    Type this equation into our search engine, and we get:
    y = 160

    Substitute this value into equation 1:
    x = 160/5
    x = 32
     

Share This Page