Building B was built two years before Building C. Building D was built two years before Building B. The product of Building B's age and Building D's age is at least 195. If x represents the age of Building C, which of the following represents this situation?

Question

Watson

Mathematics

21 September, 00:54

Building B was built two years before Building C. Building D was built two years before Building B. The product of Building B's age and Building D's age is at least 195. If x represents the age of Building C, which of the following represents this situation?

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Answers (1)

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Madalyn Wells · Answer 1

You need to make an equation for each of the buildings age.

C = x

B = x + 2

D = B + 2 which is (x + 2) + 2 so x + 4

Product means to multiple so (B) (D) which is (x + 2) (x+4)