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marishachu [46]
3 years ago
12

The cost of installing an electric heating system for a 3- bedroom home is $5000 and the operating cost is $1,100 per year. A so

lar heating system costs $29,700 to install but only $150 per year to operate. After how many years will total costs for the two systems be the same? What will the cost be?
Mathematics
1 answer:
Lana71 [14]3 years ago
3 0

Answer:22

Step-by-step explanation:

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soldier1979 [14.2K]

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21

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3 years ago
Solve for s.<br> -7 = 7s + 28
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s=  -5

Step-by-step explanation:

have a good day

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2 years ago
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May you please help me with Highschool Ap Calculus.​
nadya68 [22]

Answer:

dy/dx = x=-1

Step-by-step explanation:

by use of intergration to get the values of yaxis and x axis,,the values are -2, -4,

5 0
2 years ago
Pls help me, cause I don't understand one bit of it at all​
topjm [15]

Answer:

I promise you this is easier than it looks, just bare with me.

You have to order these numbers from the smallest to the biggest. Now before we do this, we wanna make the fractions and mixed numbers decimals to make this easier.

5 8/11

Convert the fraction to a decimal: Divide the numerator by the denominator.  (8 divide by 11).

Add this decimal number to the whole number part of the mixed number. (0.72 plus 5)

It would be 5.72

Now 57/10

The same steps as the last one, but since it isn't a mixed number you don't add anything. (57 divided by 10)

It would be 5.7

Now we have to order them from least to greatest. How do we figure that out? Well lets list the numbers that we have now:

5.72

5.7

5.67

5.726

Now since they all have the same whole number, we just have to look at the numbers after the decimal.  Well the least number we have here is "7". Then it would be 67, then 72, then 726.

So the answer would be from least to greatest:

5.7

5.67

5.72

5.726

I hope this helps..sorry if I took so long I wanted to make sure I explained this as good as I can so you don't keep struggling. Good luck, take care <3

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8 0
3 years ago
The volume of a sphere is 2862π m3. What is the surface area of the sphere to the nearest tenth. PLEASE HELP AND QUICK!
coldgirl [10]

Answer:

<h3>A≈974.83</h3><h3>V Volume </h3><h3>2862</h3><h3>Step-by-step explanation:</h3>

<h3>Using the formulas</h3><h3>A=4πr2</h3><h3>V=4</h3><h3>3πr3</h3><h3>Solving forA</h3><h3>A=π⅓(6V)⅔=π⅓·(6·2862)⅔≈974.83372</h3>

<h3>brainliest pls and ur welcome</h3>

5 0
2 years ago
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