Answer:
Step-by-step explanation:
Given
Required
Determine f(3)
f(3) implies that x = 3.
We make use of
Because x >1 (i.e. 3 > 1)
Substitute 3 for x in f(x) =-3x + 1
Answer:
5 1/4
Step-by-step explanation:
4 1/5 - 2 7/20 + 3 1/4
Common denominator = 20.
4 4/20 - 2 7/20 + 3 5/20
7 12/20 - 2 7/20 = 5 5/20 = 5 1/4
Answer:
The pump should be added by 8PM
Step-by-step explanation:
An oil tanker can be emptied by the main pump in 4 hours.
An auxiliary pump can empty the tanker in 11 hours.
the main pump is started at 7 PM,and we have 10 PM - 7PM = 3 hours to empty the tank.
So we have to look for the combined rate of the both pumps .
Let's say the volume= x
Rate of first pump= x/4
Rate of second pump= x/11
The rate will be added together
Combined rate= x/11 + x/4
Combined rate= 15x/44
But they have three hours to complete their pump
15x/44 = 3
X=1.0227
The pump should be added by 8PM
The answer is 27a-2!!!!!!!!!!!!!
