3 years ago

A tank fills in 8 hours but evaporates in 12. how long will it take to fill the tank

Mathematics

1 answer:

Neko [114]3 years ago

7 0

1 = h · $\frac{1}{8}$ - h · $\frac{1}{12}$

Solve for h.
(units in hours)

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kondaur [170]

Answer: 200

Step-by-step explanation:

Number of numbers counted by Alex;

= 2,400 / 6

= 400

Number of numbers counted by Matthew;

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= 600

Numbers that both of them counted = 600 - 400

= 200

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2 years ago

The velocity of a particle moving back and forth on a line is vequalsStartFraction ds Over dt EndFraction equals6 sine (2 t )Sta

max2010maxim [7]

Answer:

s = 6 m

Step-by-step explanation:

The value of the velocity v is given as:

$v = \frac{ds}{dt} = 6 sin(2t)$ m/s

To find s, we have to integrate and apply the initial values of s = o when t = 0:

$\frac{ds}{dt} = 6 sin(2t)\\\\\int\limits^s_0 {ds} = \int\limits^t_0 {6sin(2t)} \, dt\\\\s|^s_o = -3cos(2t)|^t_o\\\\s - 0 = -3cos(2t) -(-3cos(0))\\\\s = -3cos(2t) + 3(1)\\\\s = -3cos(2t) + 3$

When t = π/2, s will be:

s = -3cos(2 * π/2) + 3

s = -3cos(π) + 3

s = -3(-1) + 3

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s = 6 m

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3 years ago

12000 miles with a 5 percent increas

levacccp [35]

1260. You do 1200*.05= 60. Then 1200+60=1260

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3 years ago

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Tatiana [17]

The correct answer is 64 bc 6 times 6 is 64

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Step-by-step explanation:

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2 years ago