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AleksandrR [38]
2 years ago
12

Your parents decide to build a rectangular pool in your backyard. They determine that the length of the pool should be 15 feet l

onger than the width. If the width of the pool is represented by x, write a simplified expression that would represents the perimeter of the pool. Show your work.
Mathematics
1 answer:
damaskus [11]2 years ago
4 0

Width = X

Length = X + 15

Perimeter of a Rectangle = 2W + 2L

2(X) + 2(X + 15)

2X + 2X + 30

4X + 30

Answer = 4X + 30

Hope this helps! :)

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finlep [7]
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$55 - $15 = $40 

$45,000 ÷ $40 = 1,125 

So, your answer is 1,125 

For, future reference, in word problems, highlight the key terms and it may come easier to do them. 
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Answer:

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How many extraneous solutions does the equation below have?
FrozenT [24]

<u>Answer</u>

0


<u>Explanation</u>

(2m)/(2m+3)-(2m)/(2m-3)=1

Simplifying the left hand first

(2m)/(2m+3)-(2m)/(2m-3) = {2m(2m-3) - 2m(2m+3)}/(4m²-9)

                                        (4m²-6m-4m²-6m)/(4m²-9)

                                         = (-12m) / (4m²-9)

Now this equet to 1

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4m²+ 12m -9 =0 ⇒⇒⇒ This is a quadratic equation that has 2 real solutions.

4m²+ 12m -9 =0

m² + 3m + (3/2)²= 9/4 + 9/4

(m + 3/2)² = 18/4

m = √18/2 - 3/2                or m = -√18/2 - 3/2

    = 0.621                                       = -3.621

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Answer = 0

8 0
3 years ago
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Mariana [72]

Answer:

180

Step-by-step explanation:

total ratio is 15

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gallons of yellow

30

gallons of blue

\frac{0.5}{15}  \times 30 \times  \frac{15}{2.5}  \\  \\  = 6

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2 years ago
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MariettaO [177]
X = 3

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3. Collect like terms again (add 14 and subtract 2x)

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4. Divide by 6

x = 3
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