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2 years ago

I’m confused on this one

Mathematics

2 answers:

kondaur [170]2 years ago

7 0

AE = 1/2 * AC

AC = DB so

AE = 1/2 * DB

therefore

4x - 12 = 1/2(7x - 18)

4x - 12 = 3.5x - 9

0.5x = 3

x = 6 answer

RoseWind [281]2 years ago

6 0

In this question, AE is the length of half of one diagonal in the rectangle. DB is the length of the other diagonal. 2(4x-12) would be the total length of the other diagonal, AC. You can set 2(4x-12) equal to 7x-18 and solve for x.

2(4x-12)=7x-18

8x-24=7x-18

x-24=-18

x=6

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