marijamiah0806 marijamiah0806
  • 12-01-2018
  • Mathematics
contestada

Solve for x. Show the equation you used and your work.

Solve for x Show the equation you used and your work class=

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carlosego
carlosego carlosego
  • 25-01-2018
Since the triangles in the figure are similar, then we have to
 ((14 + 6) / (14)) = ((21+ (x + 4)) / (21))
 Clearing for x
 ((20) / (14)) = ((25 + x) / (21))
 ((20) / (14)) * 21 = 25 + x
 x = ((20) / (14)) * 21-25
 x = 5
 answer
 x = 5
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