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help me answer this pls

Help Me Answer This Pls class=

Sagot :

Answer:

x = 36.5

Step-by-step explanation:

The two triangles are similar so we can use the similarity ratio to find x

AB ~ DE and BD ~ BA

15/31 = x/(x+39) cross multiply expressions

31x = 15x + 585

31x - 15x = 585

16x = 585 divide both sides by 16

x = 36.5 approximately