A restaurant serves red, blue and yellow tortilla chips. The bowl of chips Gabe receives has 10 red chips, 8 blue chips, and 12
yellow chips. After Gabe chooses a chip, he eats it. What is the probability that Gabe chooses a yellow chip, then not a blue chip?
1 answer:
You might be interested in
One way you could solve this is to just multiply the top and bottom out so that you get 9/81, reducing it by 9/9 to get 1/9 or option C.
Another way would be to do
since dividing numbers with exponents would be subtracting the bottom exponent from the top exponent, provided that the base number (in this case 3) is the same for both. For this method, you would get 
, which is equal to 1/9 or .1 repeating, the same answer that you'd get with the first method.
Another way would be to do