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12 September, 09:56

What is the value of x in the equation below? Round to the nearest hundredths place.

A. 3.01

B. 3.17

C. 36.44

D. 38.40

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Answers (2)
  1. 12 September, 12:22
    0
    0.45 (x + 1.6) + 5x = 18

    0.45x + 0.72 + 5x = 18

    5.45x = 18 - 0.72 = 17.28

    x = 17.28 / 5.45

    x = 3.17 answer
  2. 12 September, 13:43
    0
    0.45 (x+1.6) + 5x = 18

    Expanding 0.45x+0.45*1.6+5x = 18

    Regrouping 0.45x+5x = 18-0.45*1.6

    So 5.45x = 18-0.72

    x = 17.28/5.45 = 3.17

    Ans is B
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