Answer:
18:21 is equivalent to 18/21. When you simplify 18/21, you get 6/7
By addition theorem of probability,
P(AUB) = P(A) + P(B) -P(A∩B)
or
P(A or B) = P(A) +P(B) - P(A and B)
P(A or B) = 0.7 + 0.4 - 0.3 = 0.8
Therefore, the probability that randomly selected person likes pizza or burger is 0.8
Answer:
36 + 3b = 117
Step-by-step explanation:
36 is the one specialized cake he sold.
3 is the cost and b is how many it represents
117 is your total, so we piece it together.
36 + 3(b) = 117