Abag contains green marbles and purple marbles if a marble is randomly selected from the bag the probability that it is green is 0.6 and the probability that it is purple is 0.4. dylan draws a marble from the bag, notes its color, and returns it to the bag. he does this 50 times. how many times would you expect dylan to draw a green marble?

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."

What is the greater volume 72 quarts or 23 gallons

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827