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29 March, 22:05

Which ordered pair is a solution to Y equals 4.5 X + 20?

A. (5,40)

B. (7,52)

C. (10,25)

D. (12,74)

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Answers (2)
  1. 30 March, 01:23
    0
    For this case, what you should do is replace each by ordered in the function and see which satisfies the equality. Substituting we have:

    Y = 4.5 X + 20

    A. (5,40)

    40 = 4.5 * (5) + 20 = 42.5

    40 = 42.5 (NO)

    B. (7,52)

    52 = 4.5 * (7) + 20 = 51.5

    52 = 51.5 (NO)

    C. (10,25)

    25 = 4.5 * (10) + 20 = 65

    25 = 65 (NO)

    D. (12,74)

    74 = 4.5 * (12) + 20 = 74

    74 = 74 (YES)

    Answer:

    The ordered pair solution is D. (12.74)
  2. 30 March, 01:43
    0
    In order to find out which ordered pair is a solution, we simply input each X value to the equation provided and see if it yields the given Y value. For A: 4.5*5 + 20 = 22.5 + 20 = 42.5 40 For B: 4.5*7 + 20 = 31.5 + 20 = 51.5 52 For C: 4.5*10 + 20 = 45 + 20 = 65 25 For D: 4.5*12 + 20 = 52 + 20 = 74. Thus D is the correct answer.
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