Sometimes system outputs are limited because the amount of the necessary information that is perceived in the system .
Given
The equation,
9x - 5y = 29.
To find the value of y when x is 1.
Explanation:
It is given that,

That implies,
When x=1,

Hence, the value of y is -4.
Answer:
27
Step-by-step explanation:
Number of member of staff that drank tee = total number of member of staff - number that drank coffee - number that drank both tea and coffee
100 - 48 - 25 = 27 members of staff