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3 years ago

Help please for the answer

Mathematics

2 answers:

Brums [2.3K]3 years ago

7 0

Answer:

2x° + 10° = 90°

3x° = 120°

2x° + 5° = 85°

2x° - 15° = 65°

Step-by-step explanation:

360° = 3x° + 2x° + 5° + 2x° + 10° + 2x° - 15°

360° = 3x° + 2x° + 2x° + 2x° + 5° + 10° - 15°

360° = 9x°

9x° = 360°

x° = 360° : 9

x° = 40°

2x° + 10°

= 2(40°) + 10°

= 80° + 10°

= 90°

3x°

= 3(40°)

= 120°

2x° + 5°

= 2(40°) + 5°

= 80° + 5°

= 85°

2x° - 15°

= 2(40°) - 15°

= 80° - 15°

= 65°

#LearnWithEXO

Ostrovityanka [42]3 years ago

4 0

Step-by-step explanation:

3x+2x+10+2x+5+2x-15 = 360

9x+15-15=360

9x=360

x=40.

3x=3×40=120°
2x+5=2×40+5=80+5=85°
2x+10=2×40+10=80+10=90°
2x-15=2×40-15=80-15=65°.

hope this helps you.

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3 years ago

Help please for the answer ​

Help please for the answer