WILL MARK BRAINEST IF ANSWER IS CORRECT, ✨
2 answers:
Answer:
★ The answer is 180
Step-by-step explanation:
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Answer:
2x + 6x + 20 = 180
8x = 160
x = 20
EZ
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40 + 140 = 180 (proof)
Step-by-step explanation:
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Answer:
Step-by-step explanation:
The formula of a perimeter of a triangle:
We have:
Substitute:
Combine like terms:
Answers:
1.) x - 3, x < -3
2.) x - 3, x>3
3.) x - 3, -3 <_ x > 3
4.) 2/5, 3/6
5.) 8, 10
Answer: -7 < k < 7
Step-by-step explanation:
Answer:
81
Step-by-step explanation:
90+25= 115
115 - 34 = 81