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Vlad1618 [11]
3 years ago
15

A power plant burns 12 tons of coal per day to generate electricity. Each ton of coal produces

Mathematics
1 answer:
OleMash [197]3 years ago
5 0

Answer:

32.97 tons of CO2 per day.

Step-by-step explanation:

From the question given above, the following were obtained:

Power plant burns = 12 tons of coal per day

1 ton of coal = 7327 kWh

CO2 emitted = 0.75 pound per kWh

Tons of CO2 emitted per day =?

Next, we shall convert 0.75 pound to ton.

This can be obtained as follow:

2000 pounds = 1 ton

Therefore,

0.75 pound = 0.75 pound/2000 pounds × 1 ton

0.75 pound = 3.75×10¯⁴ ton

Therefore, 0.75 pound is equivalent 3.75×10¯⁴ ton.

From the above, we can say that CO2 is emitted at 3.75×10¯⁴ ton per kWh.

Next, we shall determine the electricity generated per day.

This can be obtained as follow:

1 ton of coal = 7327 kWh of electricity

Therefore,

12 tons of coal = 12 × 7327

12 tons of coal = 87924 kWh of electricity.

Therefore, the plant produces 87924 kWh of electricity per day.

Finally, we shall determine the tons of CO2 emitted per day as follow:

1 kWh of electricity emitts 3.75×10¯⁴ ton of CO2.

Therefore, 87924 kWh of electricity will emitt = 87924 × 3.75×10¯⁴ = 32.97 tons of CO2 per day.

From the calculations made above, the pant emitts 32.97 tons of CO2 per day.

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Answer:

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3 years ago
An iPod uses a standard 1.7 volt battery. How much resistance is in the circuit if it uses a current of
weeeeeb [17]

Answer:

R = 56.6 ohms

Step-by-step explanation:

Given that,

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Let the resistance be R. It can be solved using Ohms law as follows :

V = IR

R=\dfrac{V}{I}\\\\R=\dfrac{1.7}{0.03}\\R=56.6\ \Omega

So, the resistance in the circuit is 56.6 ohms.

7 0
3 years ago
If a and b are events and b ⊂ a, why is it "obvious" that p(b) ≤ p(a)?
Masja [62]

Answer:

If a and b are two events such that:

b⊂a

Then it is obvious that p(b)≤p(a)

where p denotes the probability of an event.

<em>" Because as one event is contained in the other that means it has possibility to contain more favourable outcomes than the other while the probability of both the events is calculated by taking the total number of outcomes to be equal "</em>

Let us consider an <u>example</u> as:

We roll a die;

so the total outcomes are: {1,2,3,4,5,6}.

Now let b denotes the event that the number is an even number less than 5.

Number of favourable outcomes( {2,4} )=2

p(b)= 2/6

let a denotes that the number is less than 5.

Then Number of favourable outcomes( {1,2,3,4} )=4

p(a)=4/6

clearly b⊂a

also we could see that p(b)<p(a)



5 0
4 years ago
26+6b greater than or equal to 2(3b+4)?
aleksandrvk [35]
Greater than because no matter what variable b is equal to your equation will always look like this:

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thus it is greater than
4 0
3 years ago
Solving 12-(x+3)=10
Margarita [4]
12-(x+3)=10

Simplify the equation.

12-x-3=10

Combine like terms.

(12-3)-x=10

Simplify.

9-x=10

Subtract 9 from both sides to get x by itself.

-x=1

Divide both sides by -1 to get x by itself.

x=-1

~Hope I helped!~




4 0
4 years ago
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