mabel received 120 of the most popular beads for her birthday. there were 4 packages. how many beads per package were ther.
1 answer:
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Here’s a picture of my work. The answer is b. Hope this helps :-)
Answer: The answer is (C) 180°.
Step-by-step explanation: Given that m∠A = 40°. ∠B is a complement of ∠A and ∠C is a supplement of ∠B. We are to find m∠B + m∠C.
Since ∠B is a complement of ∠A, so we have
Now, since ∠C is a supplement of ∠B, so we have
Therefore,
Thus, (C) is the correct answer.