Answer:
A
Step-by-step explanation:
you get the numbers then divide after you have multiplied and then just find the distribution of the subtracted number :)
For the question, your answer would be the first one; It doesn't exist.
Answer:
x=70
Step-by-step explanation:
Answer:
22
Step-by-step explanation:
Let X be the time for only a small drain, the work completed would be unity.
The small drain has been open for a total of 11 hours, one hour next to the large one, and 10 hours alone.
We have that large drainage can accomplish this in 2 hours.
We have the following system:
1/2 + 11 / x = 1
solving, we have:
11 / x = 1 - 1/2
11 / x = 1/2
x = 11 * 2
x = 22
I mean it would take a total of 22 hours for the small drain alone
