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lilavasa [31]
3 years ago
12

My first question ever, and my last question yet.

Mathematics
1 answer:
shtirl [24]3 years ago
3 0

Answer:

  • n = {14, 15, 16}

Step-by-step explanation:

<u>This is a sum of the first n terms of an AP:</u>

  • S = (1 + n)*n/2

<u>The true sum is between 92 and 145:</u>

  • 92 < n(n + 1)/2 < 145
  • 184 < n(n + 1) < 290
  • 184 < n² + n < 290
  • 185 < (n + 1/2)² < 291
  • √185 < n + 1/2 < √291
  • 14 ≤ n < 17

<u>Let n = 14</u>

  • S = 14*15/2 = 105

<u>Let n = 15</u>

  • S = 15*16/2 = 120

<u>Let n = 16</u>

  • S = 16*17/2 = 136

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The profit to be made when she sells the house is $103,800.

The first step is to determine the value of Tammy's house in 13 years. The formula to be used is:

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$184,000 x (1.035)^13 = $287,767.92

Profit = value of the house in 13 years - cost of the house

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To learn more about future value, please check: brainly.com/question/18760477

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3 years ago
I am thinking of a number. When I double my number and then subtract the result from five, I get negative one. What is my number
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Answer:

3

Step-by-step explanation:

To turn the word problem into an equation, when we read:

"I am thinking of a number" we write "x"

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<em>Equation: </em>-1 = 5 - 2x

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divide both sides by -2

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<h3>There we go! The number is </h3><h2>3</h2>

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