Jackie made 6 quarts of lemonade jackie says she made 3 pints of them and he explained jackie era then find the correct number of pints of lemonade

We know that in one quarts there are 2 pints.

Hence, in 6 quarts there should be pints.

Now, Jackie made 6 quarts of lemonade and said that she made 3 pints of lemonade .

So, she divided by 2 instead of multiplying by 2.  This was the error.

The correct number of pints of lemonade should be 12.

A bag contains 3 red marbles and 4 blue marbles. a marble is taken at random and replaced. Another marble is taken from the bag. Work out the probability that the two marbles taken from the bag are the same color.

Total number of marbles in the bag is 3 + 4 = 7.The problem asks for the probability of (RR) or (BB).It's worthy to note we are replacing the balls after each draw, which means we always have 7 to draw fromSince each draw is independent, we take the product of each event for the total event probability.

P(RR) = 3/7 * 3/7 = 9/49
P(BB) = 4/7 * 4/7 = 16/49

We want to know P(RR) + P(BB)
P(RR) + P(BB) = 9/49 + 16/49 = 25/49