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PtichkaEL [24]
4 years ago
8

Write an equation from the information given: A rectangle is twice as long as it is wide. The perimeter of the rectangle is 18.

Mathematics
1 answer:
Agata [3.3K]4 years ago
3 0

Let width = x, Therefore the length must equal 2x

Therefore insert these values on the sides of a rectangle.

Add: 2x + 2x + x + x = 18

Therefore 6x = 18

x = 3

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Is 30/15 a whole number
Sholpan [36]
30/15 \ is \ not \  a \ whole \ number. \ It \ is \  a \ Improper \ fraction. 

The \ numerator \  is \ bigger \ then \  the \ denominator.
6 0
3 years ago
The tile along the edge of a triangular community pool needs to be replaced. Which expression represents the total perimeter of
topjm [15]

The total perimeter of the pool edge \boxed{12{x^2} + 15}.Option A is correct.

Further Explanation:

The formula of area of square can be expressed as follows,

{\text{Area}} = \dfrac{1}{2} \times \left( b \right) \times \left( h \right)

The formula of perimeter of the triangle can be expressed as follows,

\boxed{{\text{Perimeter}} = 3 \times s}

Here, s represents the side of square.

Given:

The options are as follows,

A. {12x^2} + 15

B. {20x^2} + 25

C. {12x^2} + 8x +25

D. {24x^2} + 16x + 50

Explanation:

Option A is {12x^2} + 15.

12 and 15 are the multiple of 3.

\begin{aligned}{\text{Perimeter}} &= 12{x^2} + 15\\&= 3\left( {4{x^2} + 5} \right)\\\end{aligned}

Therefore, the perimeter of the pool is {12x^2} + 15.

The total perimeter of the pool edge \boxed{12{x^2} + 15}.Option A is correct.

Option A is correct.

Option B is not correct.

Option C is not correct.

Option D is not correct.

Learn more:

  1. Learn more about inverse of the function brainly.com/question/1632445.
  2. Learn more about equation of circle brainly.com/question/1506955.
  3. Learn more about range and domain of the function brainly.com/question/3412497

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Mensuration

Keywords: tile, edge, triangular, community pool, replaced, expression, total perimeter, pool edge, length, square, tile, polynomial expression, area, outermost tile, square tile, side of square, width, breadth, area of rectangle, dimension, measure of sides, dimensions of rectangle, expression, square.

7 0
4 years ago
Read 2 more answers
8(2x-3)-6x if 3=x and simplify
Rom4ik [11]
Simplify the expression:

8(2x - 3) - 6x = 8×2x - 8×3 - 6x = 16x - 24 - 6x = 10x - 24

for x=3

put value of "x" to the expression:

<u>10×3 - 24 = 30 - 24 = 6</u>
5 0
3 years ago
Help plzzzzzzzzzzzzzz
nata0808 [166]
The ratios are not equivalent.

6 0
3 years ago
What are the types of polygons?
Ann [662]

Answer:

Triangle Quadrilateral Pentagon Hexagon Heptagon Octagon Nonagon and Decagon

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