LisaS12 LisaS12

26-03-2021
Mathematics

contestada

Find x
(2x + 50)
(3x - 10°)

final answer needs to equal 90°!!!! Please help ??

Respuesta :

chocolatesunday127 chocolatesunday127

26-03-2021

Answer: x = 10°
(2x + 50) = 70°
(3x - 10) = 20°

Steps:
(2x + 50)° + (3x -10)° = 90°
2x + 50 + 3x - 10 = 90°
5x + 40 = 90°
5x = 50°
x = 10°

(2x + 50)
2(10) + 50
20 + 50
70

(3x - 10)
3(10) - 10
30 - 10
20

Check:
70 + 20 = 90
90 = 90 ✅

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