Answer: 34
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Work Shown:
S = sum of the first 8 numbers
S/8 = 40 is the mean of those first 8 numbers
S = 8*40
S = 320 so the first 8 numbers add to this value
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R = sum of the 12 remaining values
R/12 = 30
R = 12*30
R = 360 is what the other 12 values add to
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R+S = 360+320 = 680 is what all twenty values add to. Divide this by 20 to get the overall average
(R+S)/20 = 680/20 = 34
The area of that rectangle is 150 square inches. The result is obtained by using the formula of the perimeter dan area of pictures.
<h3>How to find the perimeter and area of a rectangle?</h3>
A rectangle is a two dimensional shape consisting of four joints. It has also four angle points.
The perimeter and area of a rectangle can be expressed as follows.
P = 2 (w + l)
A = w × l
Where
- P = perimeter of a rectangle
- A = area of a rectangle
- w = width of a rectangle
- l = length of a rectangle
The perimeter of a rectangle is 800 inches. The width of the rectangle is 60% of its length.
From that information, we have:
- P = 800 inches
- w = 60% × l = 0.6l
P = 2(w + l)
800 = 2(0.6l + l)
400 = 1.6l
l = 400/1.6
l = 250 inches
The area of the rectangle is
A = w × l
A = 0.6 l × l
A = 0.6 l²
A = 0.6 × 250
A = 150 square inches
Hence, the area of that rectangle is 150 square inches.
Learn more about rectangle here:
brainly.com/question/15019502
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Answer:
r = -9
Step-by-step explanation:
the less the negative number is the more it is .
Answer:
see below
Step-by-step explanation:
Clearly, if you turn the figure sideways or upside down (rotate 90° or 180°), you do not have the same figure. It has no rotational symmetry.
However, if you reverse it left-to-right, you get exactly the same figure. So, it has line symmetry about a vertical center line.
Answer:
the answer is 50% hehe :)
