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5 October, 08:29

The sum of two numbers is 48.

The second number is seven times the first number.

Work out the two numbers.

(answer on 1 line)

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Answers (1)
  1. 5 October, 09:26
    0
    6 & 42

    Step-by-step explanation:

    You can solve this with two variables and two equations. Note: a = first number; b = second number.

    a + b = 48

    b = 7a

    The easiest way to solve this system of equations is to plug in 7a for b.

    a + 7a = 48 8a = 48 a = 6

    Then, plug in a for the first equation to get b.

    6 + b = 48 b = 42
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