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scoundrel [369]
3 years ago
14

[20 Points] If the family plans to move to their retirement home in 10 years, which pool would be more cost effective to install

? How do you know?

Mathematics
2 answers:
nadezda [96]3 years ago
8 0

Answer:

Your answer is Graph b because the money you use will be better spent , and the answer in the question is A.

Alex73 [517]3 years ago
3 0

Answer:

Graph B, because if they move in 10 years they wont pay as much as graph A in the same amount of time

Step-by-step explanation:

text me if you need help

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Solve the math riddle below
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Answer:

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Step-by-step explanation:

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A rectangle has an area of 19.38 cm2. When both the length and width of the rectangle are increased by 1.50 cm, the area of the
Lostsunrise [7]

Answer: 5.7\ cm

Step-by-step explanation:

Given

Rectangle has an area of 19.38\ cm^2

Suppose rectangle length and width are l and w

If each side is increased by 1.50\ cm

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We can write

\Rightarrow lw=19.38\quad \ldots(i)\\\\\Rightarrow (l+1.5)(w+1.5)=35.28\\\Rightarrow lw+1.5(l+w)+1.5^2=35.28\\\text{use (i) for}\ lw\\\Rightarrow 19.38+1.5(l+w)=35.28-2.25\\\Rightarrow l+w=9.1\quad \ldots(ii)

Substitute the value of width from (ii) in equation (i)

\Rightarrow l(9.1-l)=19.38\\\Rightarrow l^2-9.1l+19.38=0\\\\\Rightarrow l=\dfrac{9.1\pm\sqrt{(-9.1)^2-4(1)(19.38)}}{2\times 1}\\\\\Rightarrow l=\dfrac{9.1\pm\sqrt{5.29}}{2}\\\\\Rightarrow l=\dfrac{9.1\pm2.3}{2}\\\\\Rightarrow l=3.4,\ 5.7

Width corresponding to these lengths

w=5.7,\ 3.4

Therfore, we can write the length of the longer side is 5.7\ cm

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d=28g I might be wrong, but we can find this by dividing 140 by five, which equals 28.

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3 more than x is less than 6
maria [59]

Answer:

x = 0

Step-by-step explanation:

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