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18 March, 08:58

Two angles are supplementary. One angle measures 2x, and the other angle measures 3x - 15. Which equation can you use to find the measure of each angle? a) 2x + 3x - 15 = 90° b) 2x - 3x - 15 = 180° c) 2x - 3x - 15 = 90° d) 2x + 3x - 15 = 180°

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  1. 18 March, 11:26
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    If two angles are supplementary it means they both add up to 180°

    So if 2x and 3x - 15 are supplementary it means they add up to 180°

    2x + 3x - 15 = 180°

    Option D, is the right equation.
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