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2 July, 00:42

Suppose you know that ∠S and ∠Y are complementary and that m∠S = 5 (m∠Y) - 180°. Find m∠Y.

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  1. 2 July, 01:12
    0
    45°

    Step-by-step explanation:

    We know ∠ Y + ∠ S = 90

    and ∠ S = 5 (∠ Y) - 180 so

    leave S alone for both

    90 - ∠Y = 5 (∠Y) - 180

    270 = 6 (∠Y)

    45 = ∠ Y

    ∠S = 5 (45) - 180

    =225-180

    =45
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