Respuesta :

angle46089

Answer:

x = 415

Step-by-step explanation:

(0.3x - 25) + (0.1x - 51) = 90°

0.3x - 25 + 0.1x - 51 = 90

0.4x - 76 = 90

        + 76   + 76

0.4x = 166

÷0.4    ÷0.4

x = 415

The equation is a right angle so it's equal to 90°

I hope this helps!

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