Question 1157014: 1. In a bag of keys, there are 14 silver keys, 5 black keys, 11 copper keys, and 3 painted keys of various colors. One key is drawn out at random. What is the probability that the key that is drawn is silver or copper?
2. Terry is going to purchase one item each from two-quarter machines. The first quarter machine contains bracelets that are 4 different colors, including her favorite color, red. There are equal amounts of each color. The second quarter machine contains 1 sticky hand, 1 pencil topper, 2 erasers, 3 plastic rings, and 4 bouncing balls.
What is the probability that Terry will get a red bracelet and a plastic ring by putting a quarter in each machine?
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! There are 33 keys, 25 are silver or copper
the probability of drawing one that is silver or copper is 25/33.
The probability of getting a red bracelet is 1/4. Because the color of the bracelet doesn't influence the second choice, you can multiply (1/4) by the probability of the second choice which is (3/11), since there are 11 items total and 3 are plastic rings.
The probability is 3/44.
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