23mking
23mking 23mking
  • 23-02-2021
  • Mathematics
contestada

Find the value of x.

Find the value of x class=

Respuesta :

ethanbennink3
ethanbennink3 ethanbennink3
  • 23-02-2021

Answer:

x = 9

Step-by-step explanation:

A triangle's interior angles must add up to 180, and with one angle labeled as a right angle, we know that the two remaining angles must add up to 90.

So,

(3x - 5) + (7x + 5) = 90

3x + 7x - 5 + 5 = 90

10x = 90

x = 9

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