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Usimov [2.4K]
2 years ago
11

AREA How do you write1/2 as a percentage? Write your answer using a percent sign (%)​

Mathematics
2 answers:
dexar [7]2 years ago
3 0

Answer:

50%

Step-by-step explanation:

1 is half of 2 and 50% of anything is half

bonufazy [111]2 years ago
3 0

Answer:

give me brainllest if i am right

50%

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A tank contains 300 liters of fluid in which 40 grams of salt is dissolved. Brine containing 1 gram of salt per liter is then pu
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Answer:

A(t) = 300 -260e^(-t/50)

Step-by-step explanation:

The rate of change of A(t) is ...

A'(t) = 6 -6/300·A(t)

Rewriting, we have ...

A'(t) +(1/50)A(t) = 6

This has solution ...

A(t) = p + qe^-(t/50)

We need to find the values of p and q. Using the differential equation, we ahve ...

A'(t) = -q/50e^-(t/50) = 6 - (p +qe^-(t/50))/50

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From the initial condition, ...

A(0) = 300 +q = 40

q = -260

So, the complete solution is ...

A(t) = 300 -260e^(-t/50)

___

The salt in the tank increases in exponentially decaying fashion from 40 grams to 300 grams with a time constant of 50 minutes.

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