rosemary909
29.12.2020 •
Mathematics
ZA and ZB are supplementary angles. If m A = (6x – 30)° and m ZB = (8x + 28)°, then find the measure of ZA.
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Ответ:
Step-by-step explanation:
Supplementary angles : Add up to 180°.
Therefore (6x - 30)° + (8x + 28)° = 180°,
14x - 2 = 180, 14x = 182, x = 13.
Hence mA = [6(13) - 30]° = 48°.
Ответ:
323 balls divided by 17 hours equals 19 balls per hour.
So; 19x24=456