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gayaneshka [121]
3 years ago
6

Help is appreicated! (10 points!)

Mathematics
1 answer:
grigory [225]3 years ago
6 0

Answer:

5

Step-by-step explanation:

5

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Exact Form:

-\frac{1}{8}

Decimal Form:

− 0.125

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 The answer is 75% Proportions can help with this :)
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Stella [2.4K]

Answer:

8^2+x + 2^ 3x = 32^ 1/2

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7 0
3 years ago
Suppose that a large mixing tank initially holds 400 gallons of water in which 70 pounds of salt have been dissolved. Pure water
Setler79 [48]

Answer:

Step-by-step explanation:

Given that a large mixing tank initially holds 400 gallons of water in which 70 pounds of salt have been dissolved. Pure water is pumped into the tank at a rate of 4 gal/min, and when the solution is well stirred, it is then pumped out at the same rate.

Let Q(t) be the quantity of salt at time t.

Q(0) = 70 pounds

Inflow of water = outflow = 4 gal/min

So resulting volume of tank at time t = 400 gallons

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= 0 - \frac{Q(t)}{400}

i.e. \frac{dQ}{dt} =\frac{-Q(t)}{400}

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A =70

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2 years ago
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Sati [7]

Answer:

12

Step-by-step explanation:

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