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Dafna1 [17]
3 years ago
15

How to find perimeter with equations

Mathematics
2 answers:
Reptile [31]3 years ago
6 0

Answer:

12x + 28 = p

20x + 4 = p

Step-by-step explanation:

Assuming that both shapes are square, the perimeter of a square is the equation:

4 * x = p

Where x is the length of one side. Plug the variables in for the first square:

4 * (3x + 7) = p

Expand the brackets:

4 * 3x = 12x

4 * 7 = 28

12x + 28 = p

For the second square, plug the variables in again:

4 * (5x + 1) = p

Expand the brackets:

4 * 5x = 20x

4 * 1 = 4

20x + 4 = p

Hope this helps!

erastova [34]3 years ago
5 0

Step-by-step explanation:

In blue colour square

Perimeter= 4 × side

= 4 (3x +7)

=12x +28 unit

In green colour square

Perimeter= 4 × side

= 4 ( 5x+1)

= 20x +4 unit

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3 years ago
Please help me how to figure this out I’m trying to figure out the area ASAP please
Natasha2012 [34]

Answer:

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Step-by-step explanation:

Shown is one-fourth of a circle. Also, according to the picture, the radius is 28 meters.

The area for a whole circle is 2\pi r^{2}.

Using that information, we can find the area as if the circle was whole instead of just the fourth.

2(\pi)(28m)^2 = 2(3.14)(784m^{2} ) = 4923.52m^{2}

Now that we know the area of the whole circle, we just have to divide it by four to find the area of the fourth of the circle.

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That means that the area of the shape shown is 1230.88m^{2}.

I hope this helps!

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3 years ago
a shoreline is changing -3 centimeters each year due to erosion. what is the change in shoreline over 6 years?
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3 years ago
Pwease help me anyone. thanks :-) :-) :-) :-) :-) :-) :-) :-)!!!!
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A)
x+3

b)
x(x+3)=340\\
x^2+3x-340=0

c)
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It's 17.
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A video has 42 thumbs down. What integer represents its score in points?
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