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10 March, 08:27

The sum of two numbers is 10. The larger number is 4

times the smaller number. What are the two numbers?

Original system: x + y = 10,

y = 4x

Slope-intercept form:

y = - x + 10

y = 4x

+1
Answers (2)
  1. 10 March, 08:32
    0
    2 and 8.

    Step-by-step explanation:

    y = - x + 10

    y = 4x

    If we subtract we eliminate y:

    0 = - x + 10 - 4x

    0 = - 5x + 10

    5x = 10

    x = 2.

    and y = 4 * 2 = 8.
  2. 10 March, 08:50
    0
    x=8 and y=2

    Step-by-step explanation:

    x+y=10

    x=4y

    x+y=10

    4y+y=10

    5y=10 (divide both sides by 5)

    y=2

    x=4y=4*2=8
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