Serena’s average speed during her training run was 8 kilometers per hour over the 2 hours that she ran. What was the total dista
2 answers:
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Answer:
Angle A would be 40°
Step-by-step explanation:
The sum of all angles of a triangle is 180° always.
So, the sum of 80° , 11x - 4 and 15x would be 180°
80° + 11x - 4 + 15x = 180°
80 - 4 + 11x + 15x = 180°
76 + 26x = 180
26x = 104
x =
x = 4
Since angle A is 11x - 4, its measure would be
(11 x 4) - 4
44 - 4
40.