Answer:
Step-by-step explanation:
x = y - 7 ---------------------(1)
-y - 2x = 8 --------------------(2)
Put Equation (1) into (2)
- y - 2 ( y-7 ) = 8
-y - 2y + 14 = 8
-3y = 8 - 14
-3y = -6
Divide -3 to both sides
y = -6 / -3
y = 2
Put y = 2 in (1)
x = 2 - 7
x = -5
So,
x = -5 , y = 2
Hope this helped!
<h3>~AH1807</h3>
Answer:
The correct option is B) 720.
Step-by-step explanation:
Consider the provided information.
We have 10 candidates those qualified for 3 of the positions.
There are three nursing positions to be filled at Lilly Hospital. Position 1 is the day nursing supervisor, position 2 is the night nursing supervisor; and position 3 is the nursing coordinator position.
For Position 1 we have 10 choices, if we select 1 out of 10 candidates we are left with 9 candidates.
For position 2 we have 9 candidates, if we select 1 out of 9 candidates we are left with 8 candidates.
For position 3 we have 8 candidates.
Therefore, the number of ways are:
The number of different ways that 3 positions can be filled by these applicants is 720.
Hence, the correct option is B) 720.