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Marina86 [1]
3 years ago
9

Braelyn is writing an equation to represent the perimeter of a rectangle with the width equal to half the length. She knows that

the perimeter is equal to 18 units and needs to find the length and width of the rectangle. Which equations represent this relationship? Check all that apply. x + one-half x = 18 2 x + x = 18 2 (x) + 2 (2 x) = 18 x + one-half x + x + one-half x = 18 2 (x + one-half x) = 18 2 x + one-half x = 18
Mathematics
2 answers:
statuscvo [17]3 years ago
5 0

Answer:

  • 2, 3, 4,5 are correct options

Step-by-step explanation:

  • <em>Perimeter of a rectangle equals to twice the sum of length and width:</em>
  • <em>P= 2(l+w)</em>

<u>Here we have:</u>

  • P = 18
  • w= l/2

<u>If we assume width = x, t</u>hen:

  • l = 2x
  • 2(x+2x) = 18 or
  • 2x + 4x = 18

<u>If we assume length = x, t</u>hen:

  • w = 1/2x
  • 2(x + 1/2x) = 18 or
  • 2x + x = 18

<u>Answer options:</u>

  1. x + one-half x = 18   === incorrect                        
  2. 2 x + x = 18               === correct
  3. 2 (x) + 2 (2 x) = 18     === correct
  4. x + one-half x + x + one-half x = 18 === correct, same as second option
  5. 2 (x + one-half x) = 18    === correct, same as second option
  6. 2 x + one-half x = 18     === incorrect
kramer3 years ago
3 0

Answer:

I believe the answer would be 4,5,6.

Step-by-step explanation:

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Help please help please
xxTIMURxx [149]

Answer:

Combine like terms

Step-by-step explanation:

The first step in such equations is to simplify the equation which is done most often by combining like terms, and by combining like terms i mean for example:

1 + 5 + 3x = 4y + z

You will combine the like terms (those that can be added or subtracted):

6 + 3x = 4y + z

In our example, combining terms would be adding 2x/3 and 1x/3 to give

3x/3 + 2 = 5

The equation is now simple and easy to solve as you simplify 3x/3 to 1x and then proceed to rearrange the equation to yield the value of x

Hope this helps!

6 0
3 years ago
What is the function that defines the following sequence? 10, 12, 14, 16, 18…
Furkat [3]

The sequence shown is defined by a function that generates <em>even</em> numbers equal or greater than 10, defined by the function s = 10 + 2 · (n - 1).

<h3>How to define the function behind a sequence</h3>

Sequences are sets of elements characterized by at least a rule. In this case, the sequence shown is characterized by a function that generates even numbers equal or greater than 10. The function behind the sequence is shown below:

s = 10 + 2 · (n - 1)     (1)

Where n is the <em>element</em> index.

The sequence shown is defined by a function that generates <em>even</em> numbers equal or greater than 10, defined by the function s = 10 + 2 · (n - 1).

To learn more on sequences: brainly.com/question/21961097

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4 0
2 years ago
Angles 1 and 2 are complementary and congruent. What is the measure of angle 1
ExtremeBDS [4]

Answer:

45 i think i dont know

Step-by-step explanation:

m

∠

2

=

x

holds true.

Complementary angles have a sum of

90

˚

. Thus, if

∠

1

and

∠

2

are complementary,

m

∠

1

+

m

∠

2

=

90

Substitute the equivalent forms of these angle measurements

(

x

,

x

)

.

x

+

x

=

90

Solve algebraically.

2

x

=

90

x

=

45

Each angle is

45

˚

.

6 0
4 years ago
What is the quotient of 14.2 ÷ 0.28
Elina [12.6K]
This would be 50.71                  
4 0
3 years ago
Read 2 more answers
Determine the equation of the line with slope 3/4 passing through the point 4,0
Vitek1552 [10]

Answer:

y = \frac{3}{4}x - 3

Step-by-step explanation:

If it has a slope of 3/4, then it will look like this:

y = \frac{3}{4}x + b

If it passes through (4, 0), than y = 0 when x = 4

y = \frac{3}{4}(4) + b

y = 3 + b

b = -3

Therefore, the equation is y = \frac{3}{4}x - 3.

8 0
3 years ago
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