briahmetitineMier briahmetitineMier

08-02-2016
Mathematics

Answered

Solve the proportion

5/x = 4/8

A2
B6
C8
D10

Verified Answer :

08-02-2016

Cross-multiply for a result of:

40=4x

Divide by 4 to see that x=10. D is the correct answer.

Answer Link

08-02-2016

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.

Answer Link

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