Answer:
1. =2
2. times 2
3. b.
Step-by-step explanation:
Assuming the order does not matter, you want the number of combinations of 9 things taken 5 at a time. The combinations can be shown as C(9,5), 9C5.
C(9, 5) =
9/5(9-5) =
9*8*7*6*5 / 5*4
The 5 terms cancel.
9*8*7*6 / 4*3*2 =
9*7*2 =
126
The above change is because 4*2 cancels the 8 in the numerator and 6/3 = 2
Therefore, the solution is 126.
Answer:
1. Cody made a greater percentage (i.e 90%) of his shots
2. Deshown made 80% of his shots
Step-by-step explanation:
To know who have a higher percentage, let us calculate their individual percentage. This is illustrated below:
For Deshown,
He made 24 baskets out of 30 shots.
The percentage of shot made = 24/30 x 100 = 80%
For Cody,
He made 18 baskets
out of 20 shots
The percentage of shot made = 18/20 x 100 = 90%
From the above calculations, Cody made greater percent of his shots
Answer:
2:5
Step-by-step explanation:
They can both be divided by 3.
6 divided by 3 is 2, while 15 divided by 3 is 5
Boys:Girls
6:15
<u>2:5</u>