Answer:
The smaller pipe can fill the tank in 6 hours alone.
Step-by-step explanation:
Let us assume that the smaller pipe can fill the tank alone in x hours and the larger pipe fills it in (x - 3) hours.
Therefore, the smaller pipe in 1 hour can fill part of the tank.
Again the larger pipe in 1 hour can fill part of the tank.
So, if both the pipes are open then, in 1 hour they can fill ( part of the tank.
Therefore, they can fill the full tank in hours.
As per given condition, we can write
⇒ x² - 3x = 4x - 6
⇒ x² - 7x + 6 = 0
⇒ (x - 6)(x - 1) = 0
⇒x = 6 or x = 1
But x can not be less than 2 hours.
So, x = 6 hours.
Therefore, the smaller pipe can fill the tank in 6 hours alone. (Answer)
Answer:
b=-9
Step-by-step explanation:
b/-1=9
times both sides by -1
b=-9
Answer:
10/31
Step-by-step explanation:
Out of the total 62 skaters, 20 were not age 12 and were wearing rollerblades. 20/62=10/31. Hope this helps!
Answer:
3/8
Step-by-step explanation:
three 1s out of 8 options.
3/8
Answer:
See explanation
Step-by-step explanation:
OK. Alvi is incorrect because he didn't add the measures of all 3 angles of the triangle, whereas Brian did. So, Brian is correct and Alvi needs to work on that kind of problem.