Answer:
uhm i cant really see it
Step-by-step explanation:
[6 x 2 - 5] x 2
= (12 - 5 ) x 2
= 7 x 2
=14
Let,the time taken by larger pipe = x
By smaller pipe = x+5
It would be: 1/x + 1/(x+5) = 9/100
= x+5+x /(x)(x+5) = 9/100
= 2x+5 / x²+5x = 9/100
= 100(2x + 5) = 9(x² + 5x)
= 200x + 500 = 9x² + 45x
= 9x² - 155x - 500 = 0
= 9x² - 180x + 25x - 500 = 0
= 9x(x - 20) + 25(x - 20) = 0
= (9x + 25) (x - 20) = 0
= x = -25/9 or x = 20
Time can't be in negative so -25/9 is rejected.
Now,x + 5 = 20 + 5 = 25
In short, Your Larger pipe takes 20 minutes and smaller pipe takes 25 minutes
Hope this helps!
Answer:
w = √7
Step-by-step explanation:
Using the Pythagorean theorem, we find ...
r = √(1²+1²) = √2
s = √(1² +(√2)²) = √3
t = √(1² +(√3)²) = √4
u = √5
v = √6
w = √7
Answer:
3.75 liters a day
Step-by-step explanation:
