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Oksanka [162]
3 years ago
15

Assume a gas is at a constant temperature. If its initial pressure, final pressure, and initial volume are 150 kPa, 200 kPa, and

25 cm3, respectively, what is its final volume?
A.
20 cm3

B.
25 cm3

C.
33.33 cm3

D.
18.75 cm3

E.
22.5 cm3
Mathematics
1 answer:
Vlad1618 [11]3 years ago
5 0

Answer:

Option D.  18.75 cm3

Step-by-step explanation:

we know that

The Boyle's law (Ideal gas law) states that Where temperature remains constant, the pressure is inversely proportional to volume.

so

P1 *V1 = P2 *V2  

In this problem we have

P1=150 kPa

P2=200 kPa

V1=25 cm³

substitute and solve for V2

(150)(25)= 200*V2

V2=(150)(25)/200=18.75\ cm^{3}    

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Given:
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- bought n items of product B at 1/4 rs each
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He lost 3 rs in the above batch of articles.

Solution:
revenue = 2n* (2/9) rs = 4n/9 rs
cost = n/5+n/4 rs = n(1/5+1/4)
Profit = revenue-cost = 4n/9-n(1/5+1/4) = -3 rs

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4n/9-n(1/5+1/4) = -3 
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Total number of products bought
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6 0
3 years ago
PLSS HELPPP!!! IN ORDER TO RECIEVE A BRAINLY, ANSWER QUICKLY AND CORRECTLY, AND MOST OF ALL, GIVE AN EXPLANATION!!! TYSM IN ADVA
Natalija [7]

Answer:

A. {−3.5, −2, 1, 2.5}

Step-by-step explanation:

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y=9+6x

6x=y-9

So we just insert the values, the first one being -12.

So since from the options only A has -3.5 as an option that's the correct answer.

hoped this helped! <3

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Answer:

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