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LUCKY_DIMON [66]
3 years ago
11

The perimeter of a swimmingpool is 78 feet. The difference between four times the length and the width is 73.5 feet. What are th

e length and the width of the pool ?
Mathematics
1 answer:
Marianna [84]3 years ago
3 0

Answer:

Length is 22.5 ft

Width is 16.5 ft

Step-by-step explanation:

4L-w=73.5

4L=73.5+w

L=(73.5+w)/4

P=78

P=2L+2w

78=2[(73.5+w)/4]+2w

78=(73.5+w)/2+2w

78=(73.5+w+4w)/2

2•78=73.5+5w

156=73.5+5w

156-73.5=5w

82.5=5w

82.5/5=w

16.5=w

L=(73.5+w)/4

=(73.5+16.5)/4

=90/4

L=22.5

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Naya [18.7K]
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Then, divide that, 1170, by 2 which equals 885.
So your answer (which im pretty sure is correct) 885
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4 0
3 years ago
Which of the following describes the end behavior of f(x)=2x/3x^2-3​
galina1969 [7]

Answer:

Step-by-step explanation:

Next time, please enclose the quantity in the denom. inside parentheses, to eliminate any ambiquity regarding what the divisor is.

              2x               2(x)

f(x) = ---------------  =  -------------------

          3x² - 3            3(x - 1)(x + 1)

This is the same as:

2         x

--- * ------------

3     (x-1(x+1)

As x grows large, the 2nd fraction approaches 1/x as a limit, which goes to zero.  Hence, the end behavior involves the x-axis as the horizontal asymptote.  This agrees with the first answer choice.  

4 0
3 years ago
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HELLP look a the photo please and thank you :)
vivado [14]

Answer:

D: because it is the closest

4 0
4 years ago
Please help
Yuliya22 [10]

4

If two triangles are similar, corresponding sides are in proportion. So, we have

\dfrac{17.5}{14} = \dfrac{2y}{y+3}

Multiply both sides by 14(y+3) to get

17.5(y+3) = 28y

Expand the left hand side:

17.5y + 52.5 = 28y

Subtract 17.5y from both sides:

52.5 = 10.5y

Divide both sides by 10.5:

y = 5

8

Given the ratio

\dfrac{x}{y} = \dfrac{4}{11}

we can deduce

x = \dfrac{4}{11}y

The perimeter of the rectangle is given by

2x+2y = 2\cdot \dfrac{4}{11}y + 2y = \dfrac{30}{11}y = 650 \iff y = \dfrac{715}{3}

Now we can deduce the value for x:

x = \dfrac{4}{11}\cdot\dfrac{715}{3} = \dfrac{260}{3}

8 0
3 years ago
14.42 Round to the nearest tenth.
Andre45 [30]
The answer is 14.4 because if the last number is 5 or higher you round up if not you round down. Then, you should get 14.40 but, the 0 isn't necessary so the answer is 14.4.
3 0
3 years ago
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