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Elis [28]
3 years ago
9

A rectangular pool 12 meters by 8 meters is surrounded by a walkway of width x meters. At what

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
8 0
X=3

x is the width of the sidewalk
The outside dimensions of the walkway are 12 + 2x by 8 + 2x
The total area is (12 + 2x)(8 + 2x)
The total area minus the area of the pool should be equal to the area of the pool

Hoped this helped!
You might be interested in
Describe the transformation for g(x) = -f(x) - 5.
tresset_1 [31]

Answer:

A)  reflection over the x-axis and a vertical translation down by 5 units

Step-by-step explanation:

  • Making the output negative reflects the graph over the x-axis
  • subtracting or adding a constant from/to the function translates it down/up (along the y-axis) by that many units

7 0
3 years ago
Help Please !
Mamont248 [21]
The answer is <span>Sum of Cubes.

Since there is sign +, we expect it to be the sum. Among all choices, only the last one includes summation, and that is sum of cubes.

Let's check it out.
Sum of cubes can be expresses as:
a</span>³ + b³ = (a + b)(a² - ab + b²)

Let's see what are cube roots of 125 and 8: 
∛125 = ∛5·5·5 = ∛5³ = 5     ⇒     a = 5
∛8 = ∛2·2·2 = ∛2³ = 2     ⇒     b = 2

Now, let's implement that in the equation of sum of cubes:
5³ + 2³ = (5 + 2)(5² - 5·2 + 2²)
125 + 8 = 7 · (25 - 10 + 4)
133 = 7 · 19
133 = 133

Therefore, sum of cubes is the right answer.
6 0
4 years ago
What is (2x4)+(12x2)/4? Will give out brainliest!!<br> Also press search+L
s344n2d4d5 [400]

Answer:

14

Step-by-step explanation:

PEMDA ( ( ), ^, x, ÷, +, -)

write equation

(2x4) + (12x2) ÷ 4 =?

solve

(2x4) = 8

rewrite

8 + (12x2) ÷ 4

solve

(12x2) =24

rewrite

8 + 24 ÷ 4

solve

24 ÷ 4 = 6

rewrite

8 + 6

Solve

8+6=14

Answer = 14

Hope this helped!

~Lunar Rose. Moon

4 0
3 years ago
How do I solve for x?
NISA [10]
Write and solve an equation of ratios based upon the fact that the small and large triangles shown are similar:

 5          6
---- = ---------
14      6 + x

Then 30 + 5x = 84, and 5x = 54, and so x = 54/5, or 10.8, or 10 4/5.
5 0
3 years ago
Just I need help ASAP
g100num [7]

Answer:

x≤3 or x>10

Step-by-step explanation:

x≤3 because the dot is a solid dot at 3 and pointing backward toward numbers less than 3.

x>10 because the dot is an open circle pointing toward numbers greater than 10.

6 0
3 years ago
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