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marysya [2.9K]
2 years ago
14

Need help with this assignments

Mathematics
1 answer:
Mashcka [7]2 years ago
3 0

Given values:-

P= 0.97

V= 2.85

R= 0.082

T= 295

n= ?

we have given formula,

PV=n RT

so,

n = PV/RT

n =  \frac{0.97 \times 2.85}{0.082 \times 295}  \\  =  \frac{2.7645}{24.19}  \\  = 0.1142 \\  = 0.11

0.11 is your answer.

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artcher [175]

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Answer:

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7 0
3 years ago
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Convert 3 4/7 into an improper fraction.
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25/7
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7 0
2 years ago
You multiply a number by 3 subtract 6 then add 2 the results is 20 what's the number
e-lub [12.9K]

You multiply a number by 3 subtract 6 then add 2 the results is 20

what's the number​ ?

Let the number = x

multiply a number by 3

so, it becomes 3x

subtract 6 , so, 3x - 6

then add 2

so, 3x - 6 + 2

The result will be 20

So,

3x - 6 + 2 = 20

solve for x

3x - 4 = 20

Add 4 to both sides

3x - 4 + 4 = 20 + 4

3x = 24

Divide both sides by 3

3x/3 = 24/3

So,

x = 8

5 0
1 year ago
What is the value of x?<br><br><br><br> Enter your answer in the box.<br><br> x =
son4ous [18]

one angle is 3x-3

another angle is 6(x-10)

Both angles are vertically opposite angles

Vertically opposite angles are always equal

So we equation both the angles and solve for x

3x - 3= 6(x-10)

3x - 3 = 6x - 60

Subtract 6x from both sides

-3x - 3 = -60

Add 3 on both sides

-3x = -57

Divide by 3

x = 19

The value of x= 19


3 0
3 years ago
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