Answer:
45 km/hr
Explanation:
total distance = 90
Increased speed = x+15
90/x - 90/x+15=1/2
90(1/x - 1/x+15)=1/2
90(x+15-x/x^2+15x)=1/2
equation is:
x^2+15x-2700=0
x^2+60x-45x-2700=0
x(x+60)-45(x+60)=0
(x+60)(x-45)=0
x= -60, x=45
reject the negative value = -60
usual speed=45 km/ hr
Answer:
The correct answer is : Fairness bias
Explanation:
This happens when an impartial and just treatment is presented. A behavior without favoritism or discrimination can be shown. This treatment has to be reasonable and in accordance with social and cultural accepted rules or principles. A fair-minded person employs and shows clear and sensible thinking about the situation.
Answer
Jeśli ćwiczysz w domu, to jest w porządku, ale nie widzę tego pytania
Answer:
Explanation:
Often they are on a trade expedition. Caravans were used mainly in desert areas and throughout the Silk Road. Traveling in groups aided in defense against bandits, in the same way that convoys at sea helped protect against piracy. It also helped improve economies of scale in trade.
