Answer:
Step-by-step explanation:
Let's say
d1 the outflow of the first pump
d2 the outflow of the second pump
V=1 is the volume of the tank
Since the second pump takes twice as long as the first to fill the tank,

Two pumps can fill a pool tank in 26 hours when working together:

How long does it take the first pump alone to fill the tank:

Answer:
it has to be in the negative numbers
Step-by-step explanation:
reason is that if you add positive numbers to a negative then the number goes down but back up to 0
Answer:

Step-by-step explanation:
Given that,
...(1)
We need to find the value of x.
We know that,
sin30 = 1/2
Use it in equation (1).

So, the value of x is equal to
.
Answer:

Step-by-step explanation:
fjhjthfdvhfjrhgehdhrjfhdrhjthr
Answer: (a+2)(3a-16)
Explanation: In the photo. Let me know if you have any questions about what I did! :)