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maxonik [38]
3 years ago
9

A faucet in a large tank can fill the tank in 12 hours. However, there is a hose in the tank which would be able to empty the ta

nk in 18 hours. If someone left both hoses on, how long would it take to fill the tank using the faucet.
Mathematics
1 answer:
Kruka [31]3 years ago
7 0
It would take the faucet 18 hours to fill the tank because 18/12=1.5.  That means it will be 1.5 times slower to fill the tank up with the hose on.  1.5*12=18.
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3 0
3 years ago
Which is the answer and how did you solve it?
motikmotik
Its pretty simple

9x-7y = 22
x + 3y = -24

(9x-7y = 22)
-9(x + 3y = -24)
= -9x -27y = 216
+ 9x-7y = 22
= -34y = 238
= / -34 = 238/-34
y = -7

now plug -7 in one of the equation
x + 3(-7) = -24
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3 0
3 years ago
Calculus application
Ugo [173]

Answer:

49m/s

59.07 m/s

Step-by-step explanation:

Given that :

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Acceleration due to gravity (a) = g(downward) = 9.8m/s²

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The initial velocity (u) = 0

Using the relation :

v = u + at

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v = 0 + 9.8(5)

v = 0 + 49

V = 49 m/s

Hence, velocity after 5 seconds = 49m/s

b) How fast is the ball traveling when it hits the ground?

V² = u² + 2as

Where s = height = 178m

V² = 0 + 2(9.8)(178)

V² = 0 + 3488.8

V² = 3488.8

V = √3488.8

V = 59.07 m/s

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Step-by-step explanation:

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3 years ago
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Naddik [55]

Answer:

Step-by-step explanation:

3

6 0
2 years ago
Read 2 more answers
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