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MrRa [10]
3 years ago
5

Petra’s electricity supply company charges her a fixed quarterly sum plus a rate per unit for electricity used. In the most expe

nsive quarter last year (January to March), she used 2 000 units and her bill was $250. In the least expensive quarter (July to September), she used 600 units and her bill was $138. She is now adding extra insulation to her home which is expected to reduce her overall electricity consumption by 25%. What can she expect her January to March bill to be next year (if there are no increases in overall tariffs)? *
Mathematics
2 answers:
Arlecino [84]3 years ago
6 0

Answer:

The size of ur mamma

Step-by-step explanation:

21

antoniya [11.8K]3 years ago
6 0

Answer:

I'm not that smart yet so I'm sorry I can't help you

Step-by-step explanation:

Sorry

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Sunny_sXe [5.5K]

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letter b ang sagot sa number 6

3 0
3 years ago
R(x)=2 square root of x s(x)=square root of x (r/s)(3)
anastassius [24]

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r

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7 0
3 years ago
Someone help me this is due tm
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8 0
2 years ago
Read 2 more answers
An urn contains 1 liter of water while a second urn nearby is empty. after 1/2 of the water in the first urn is emptied into the
Volgvan

We are given that there will be (1/2) a litre after the first pouring, so considering two successive pourings (n and (n+1)) with 1/2 litre in each before the nth pouring occurs:

1/2 × (1/n) = 1/(2n)

1/2 - 1/(2n) = (n-1)/2n

1/2 + 1/(2n) = (n+1)/2n

 

(n-1)/2n and (n+1)/2n in each urn after the nth pouring

 

Then now consider the (n+1)th pouring

(n+1)/2n × 1/(n+1) = 1/(2n)

(n+1)/(2n) - 1/(2n) = n/(2n) = 1/2

 

Therefore this means that after an odd number of pouring, there will be 1/2 a litre in each urn

 

Since 1997 is an odd number, then there will be 1/2 a litre of water in each urn.

 

Answer:

<span>1/2</span>

3 0
3 years ago
7th grade math! Please help! This is almost half of my grade!
stealth61 [152]
You would add the area of the square with the area of the triangle.

Square: length x width 
In your case, it would be 100in²

Triangle: length x height x 1/2 (or length x width divided by 2)
16-10 would be 6 (height) 10-6= 4 (length)
6 x 4 x .5 = 12in²

100in²+12in²=112in²

The area is 112in²



6 0
3 years ago
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