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MathematicsMathematics
8 March, 09:49

Solve the proportion

5/x = 4/8

A. 2

B. 6

C. 8

D. 10

+1
Answers (2)
  1. 8 March, 09:57
    0
    Cross-multiply for a result of:

    40=4x

    Divide by 4 to see that x=10. D is the correct answer.
  2. 8 March, 13:45
    0
    5/x = 4/8

    Simplify the fraction 4/8

    Divide both the numerator and denominator by 4 to get 1/2

    5/x = 1/2

    Now, we cross multiply: a/b = c/d ⇒ ad = bc

    5/x = 1/2

    1 (x) = 5 (2)

    x = 10

    Your final answer is D. 10.
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