The answer is B (20.2 ft)
When the exterior sides of two adjacent angles form a straight line or in this case form an opposite ray then, the angles are supplementary. The supplementary angles are those whose sum of the measures is 180°. Thus, the answer to this is letter B.
Answer:
45 km/h
Step-by-step explanation:
Speed = x, distance= 360 km
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- 360/x= 360/(x-5)- 1
- 360/(x-5)-360/x= 1
- 360x-360(x-5)=x(x-5)
- x^2-5x=360*5
- x^2-5x- 1800=0
- x=45 km/h
