Answer:
Step-by-step explanation:
Let W represent the number of games Fabiano should win and D represent the number games of Fabiano should draw.
We have been given that Fabiano scores 1 point for each game that he wins, so points scored in W games will be 1W=W.
We are also told that he scores 0.5 points for each game that ends in a draw. So points scored in D games will 0.5D.
As Fabiano wants to score at least 6.5 points in a major chess tournament, so total number of points scored in W games and D games should be greater than or equal to 6.5.
We can represent this information in an inequality as:
Therefore, the inequality represents the number of games Fabiano should win and draw to achieve his goal.
Answer:
a)
H - H - H
H - H - T
H - T - H
H - T - T
T - H - H
T - H - T
T - T - H
T - T - T
b)
0.125 = 12.5% probability that all three coins come up heads.
0.875 = 87.5% probability that there will be at least one tail.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Question a:
Considering H for heads, T for tails:
H - H - H
H - H - T
H - T - H
H - T - T
T - H - H
T - H - T
T - T - H
T - T - T
(b) What is the probability that all three coins come up heads?
One outcome(H - H - H) out of 8, so:
0.125 = 12.5% probability that all three coins come up heads.
Notice that the complement of the event "3 heads" is "at least one tail." Use this information to compute the probability that there will be at least one tail.
Sum of these probabilities is 100%, so:
1 - 0.125 = 0.875
0.875 = 87.5% probability that there will be at least one tail.
Answer:
8.99999999998
Step-by-step explanation:
45:115::_:23
The ratio between 45 and 115 is 2.55555555556 so 23 divied by that is 8.99999999998
Answer:
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Step-by-step explanation:rjfnu4fburbf
