20. What is the y-intercept of the line y + 11 = -2(x + 1.5).
2 answers:
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Answer: = 240 mph.
Step-by-step explanation:
Let x = speed of the plane.
t= time taken
As per given, we have
[Time = distance / speed]
From (i) and (ii), we get
Hence, the speed of the plane = 240 mph.