Answer: The answer would be 13/25
Since there are 25 balls and 12 black balls, you want to subtract 12 from 25 to get the number of blue balls. There are 25 balls in total, so the probability of getting a blue ball is 13/25
Answer:
x = 7
Step-by-step explanation:
10 / 4 = x + 8 / x - 1
[cross multiply]
10 (x - 1) = 4 (x + 8)
[distribute the factors]
10x - 10 = 4x + 32
+ 10 + 10
[add 10 to both sides to cancel out -10]
10x = 4x + 42
-4x -4x
[subtract both sides by 4x to cancel out 4x]
6x = 42
÷6 ÷6
[divide both sides by 6 to simplify 6x to x]
x = 7
________
x = 7 → 10 / 4 = x + 8 / x - 1 →
(7) + 8 / (7) - 1 → 15 / 6 →
15 ÷ 3 / 6 ÷ 3 → 5 / 2 →
5 × 2 / 2 × 2 → 10 / 4 = 10 / 4
Answer:
18π
Step-by-step explanation:
Step-by-step explanation:
let H and F be the sets of students who like hockey and football respectively.
here,
- total number of students n(U)=99
- n(H)=46
- n(F)=42
- n(H n F)=17
then,
n(H U F)=n(H) + n(F) - n(H n F)
=46+42-17
=88-17
=71
now,
n(H U F)' = n(U) - n(H U F)
=99-71
=28..
Therefore, the number of students who don't play both games are 28.
I hope this will be helpful for you....
Answer would be 120 servings because 1 3/5 times 10 is 16, so I need to multiply 10 with 12 which is 20 the answer.
