camila68
27.06.2019 •
Mathematics
18 - t/20= -9 what does t equal? 18 - t/20 = -9 what does t equal?
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Ответ:
t = 540
Step-by-step explanation:
18 - t/20 = -9
Subtract 18 from both sides.
-t/20 = -27
Multiply both sides by -20.
t = 540
Ответ:
Step-by-step explanation:
8. 120° - Obtuse angle
9. 40° - Acute angle
10. 180° - Straight angle
11. 90° - Right angle