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Answer:
a) 2(x+15) + 3x + 10 + 5x = 180
b) x = 14
c) ∡A = 58°, ∡B = 52°, ∡C = 70°
Step-by-step explanation:
a) 180° in a triangle, so adding the three ∡s together will get you 180°.
b) Do 2(x+15) before you combine like terms, then divide both sides by the coefficient of x.
c) Substitute the value of x for each expression.
Answered by
0
Answer:
Answer:
a) 2(x+15) + 3x + 10 + 5x = 180
b) x = 14
c) ∡A = 58°, ∡B = 52°, ∡C = 70°
Step-by-step explanation:
a) 180° in a triangle, so adding the three ∡s together will get you 180°.
b) Do 2(x+15) before you combine like terms, then divide both sides by the coefficient of x.
c) Substitute the value of x for each expression.
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