Amotorboat, that has speed of 10 km/hour in still water, left a pier traveling against the current of the river. forty-five minutes after the boat left the pier, the motor of the boat broke, and the boat began drifting with the current. after three hours of drifting with the current, the boat was back at the pier where it had started. what is the speed of the current of the river?

(write as unit rate) 12 meters in 28 seconds

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

5x−4≥12 or 12x+5≤−4 can you with this problem