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Need help with this

Need help with this-example-1

1 Answer

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Answer:

2nd option

Explanation:

given

BD = 4x

CE = 2x + 2

test each answer option by substituting the given values of x into each of the above equations and see if it is consistent with the given values for BD and CD in the answer options.

1st option, when x = 5,

BD = 4x = 4(5) = 20 (Consistent)

CE = 2x + 2 = 2(5) + 2 = 10 + 2 = 12 ( not consistent with CE=8)

2nd option, when x = 3/7,

BD = 4x = 4(3/7) = 12/7 (Consistent)

CE = 2x + 2 = 2(3/7) + 2 = 6/7 + 2 = 20/7 ( consistent with CE=20/7) (ANSWER)

3rd option, when x = 3,

BD = 4x = 4(3) = 12 (Consistent)

CE = 2x + 2 = 2(3) + 2 = 6 + 2 = 8 ( not consistent with CE=20)

User Amir Hoseinian
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