We know that x = 30 + y, because the problem says that there are 30 more football players than basketball players.
Each group has 10 more members added: x + 10 and y + 10. We can write x + 10 as 30 + y + 10 or 40 + y.
The ratio (40 + y)/(y + 10) = 3/2. You can cross multiply to get:
80 + 2y = 3y + 30
Combine like terms to get:
y = 50 members on the basketball team. Since there are 30 more members on the football team, you just add 30 to 50 to get x = 80 members on the football team.
Answer:
1 1/4
Step-by-step explanation:
All this is, is division. You do 61/4 dived by 5. To divide fractions you flip the numerator and denominator of the second number and multiply them.
25/4 *1/5
Therefore the answer is 25/20 which is 1 and 5/20
That can be simplified to 1 and 1/4.
Answer:
C. the standard error of the mean
Step-by-step explanation:
You need the sample mean, sample proportion
, and the standard error which depend on z or t, sigma or s, and n
