Answer:
2/7
Step-by-step explanation:
4 red marbles and 3 blue marbles in a bag = 7 marbles
P(red) = red/total = 4/7
No replacement
3 red marbles and 3 blue marbles in a bag = 6 marbles
P(red) = red/total = 3/6 = 1/2
P(red, no replacement, red) = 4/7 * 1/2 = 2/7
Answer: n=3
Step-by-step explanation:
Divide by - 2
(N+3) = 6
Subtract 3
N= 3
Answer:
-14+77=63
21-82=-61
|-61|=61
So 63-61=2
Step-by-step explanation:
Answer:
Option d - I and III.
Step-by-step explanation:
Given : If
and x and y are positive integers.
To find : Which of the following must be an integer?
Solution :
As we see all option there is a multiple of y.
So, we factoring the number 375
i.e. 


In order for 375y to be a perfect square,
The prime factorization of y must contain at least one 3 and one 5.
or y must be a multiple of 15.
If y is a multiple of 15, then
must be an integer.
and
must be an integer.
Therefore, I and III will be correct i.e. option d.
Answer:
-0.9, -0.85, -3/4, -1/2, 1/4, 0.55
Step-by-step explanation: