In a certain chemical, the ratio of zinc to copper is 3 to 11. A jar of the chemical contains 462 grams of copper. How many gra
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the mean (average) of the data set below
2/4, 18/5, 28/10, 5/20
We are given with 4 fraction
to find mean , we add all the fractions and divide by 4
Lets add all the fractions
Make the denominators same
LCM is 20
Try to get 20 in the denominator
Now we divide by 4
The percentage of its games that the team won is 57.4%
Step-by-step explanation:
The percentage of an Event = (Number of favorable outcomes / Total
number of possible outcomes) × 100%
During the 2019 regular season, the Washington Nationals professional
baseball team won 93 games and lost 69 games
We need to find the percentage of its games that the team won
1. Find the total number of games
2. To find the percentage of win, divide the number of the won games
by the total number of games and multiply the quotient by 100%
3. To find the percentage of lose, divide the number of the lost games
by the total number of games and multiply the quotient by 100%
∵ The team won 93 games
∵ The team lost 69 games
∴ The total number of games = 93 + 69 = 162 games
∵ P(won) = [n(won)/n(all)] × 100%
∵ n(won) = 93
∵ n(all) = 162
∴ P(won) = × 100%
∴ P(won) = 57.4%
The percentage of its games that the team won is 57.4%
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