l=3w Perimeter (p) = 2*(l+w) = 56 2*(3w+w)=56 2*4w=56 8w=56 w=7 inches l=3w = 3*7 = 21 inches
The formula for the perimeter of a rectangle is 2(L + W), where L is the length and W is the width. Then 16 = 2(L + W) : 8 = L + W. And L = W - 8, or W = L - 8 So, if you were dealing integers, you can choose any two numbers between 1 and 7 so that the numbers when added equal 8.
The dimensions of this rectangle are that its length is equal to 16 centimeters and its width is equal to 9 centimeters. To find these answers, you need to solve for two unknowns L and W in the equations L- W is equal to 7 and 2 x L plus 2 x W is equal to 50, where L is length and W is width.
Perimeter = 2 x Length + 2 x Width = 78 cm ie P = 2L + 2W = 78 L = W + 7 so 2W + 14 + 2W = 78 so 4W = 64 so W = 16 L = W + 7 = 16 + 7 = 23 Length= 23 cm Width= 16 cm
The volume of the cube is Length x Width x Heigt, L x W x H. If you multiply the edges of the cube by seven you are multiplying the length width and height by seven. So the new volume will be 7 x L x 7 x W x 7 x H, which is the same as 7x7x7xLxWxH = 343 x LWH, i.e. if you multiply the edges of a cube by 7 you increase the volume by 7 cubed or 343. Hope this helps.
It is: 7+w
7 wonders in a world
7 Wonders of the World.
7 Wonders of the World
7 words of the wise
7 Wonders of Ancient World
If: w-7 = 11 Then: w = 18
Its the: 7 Wonders of the Ancient World
7 wonders of the world dummy's
L = w + 3L W = 28(w + 3) W = 28w2 + 3w = 28w2 + 3w - 28 = 0(w + 7) (w - 4) = 0w = -7 and W = 4L = 7
w > -2
4 - w = 7 subtract 4 from each side 4 - 4 - W = 7 - 4 - W = 3 divide both sides by - 1 ( remember, the implied coefficient of w is - 1 ) (- 1/- 1)w = 3/- 1 w = - 3 =======check in original equation 4 - (- 3) = 7 4 + 3 = 7 7 = 7 ========checks