sihamabdalla591
02.09.2020 •
Mathematics
A hockey team played a total of 136 games last season. The number of games they won was 20
more than three times of the number of games they lost.
Write and solve an equation to answer the following questions.
The team lost
games.
The team won
games.
Solved
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Ответ:
W = number of wins
L = number of losses (actually, we don't need L if we use 74-W immediately)
Translate:
"basketball team played 74 games" means W + L = 74 (eq1)
"won 28 more than they lost" means W = 28 + L (eq1)
Now, the easy math:
W + L = 74 (eq1)
W - L = 28 (re-written eq2)
(elimination method: add equations)
2W = 102
W = 51 (divide both sides by 2)
The problem does not require us to determine L, but you can if you want to check your answer.
Ответ:
P(odd) = 2/3
1/4 x 2/3 = 1/6
1/6 = 16.7%
Answer is B