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inysia [295]
3 years ago
11

A rectangular pool is 20 feet wide and 50 feet long. A deck used for sunning surrounds the pool. The deck is the same width all

the way around the pool. The total area of the deck is 456 square feet. How wide is the deck around the pool?
Mathematics
2 answers:
Tema [17]3 years ago
6 0
(2x + 20)(2x + 50) = 456

Hope I helped!

~ Zoe
Arte-miy333 [17]3 years ago
4 0
Let x = width of deck needed

(2x + 20)(2x + 50) = 456

Solve for x to find your answer.
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An automotive repair center charges $45 for any part of the first hour of labor, and $25 for any part of each additional hour. W
IceJOKER [234]
The total cost is given by the equation:
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We can check for each option in turn:

Option A:

Inequality 5 < x ≤ 6 means the hour is between 5 hours (not inclusive) to 6 hours (inclusive)
Let's take the number of hours = 5
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Let's take the number of hours = 6
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Option B:
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We take number of hours = 7
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Option C:
The inequality is 5 < x ≤ 6
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Take the number of hours = 6
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Option D:
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7 0
3 years ago
Help me please with 3-111
LenKa [72]

Last Question

Because this may not be the question you want, I'll omit the first step which should be done with latex. The key to all of these except C is to invert the second fraction (turn the second fraction upside down) and multiply.

A

\dfrac{6}{5} * \dfrac{-2}{3}

=(6*-2) / (5*3) = - 12/15 = -4/5

B

\dfrac{7}{4} *\dfrac{5}{3}

= (7*5) / (4*3) = 35 / 12 = 2 11/12

C

Impossible to do 4/0 cannot be done.

D

\dfrac{-2}{3} /\dfrac{-5}{4}=\dfrac{-2}{3} *\dfrac{-4}{5}

= (-2*-4)/(3*5) =

8/15


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