Let the width be x and the length be x+7: 2(x+x+7) = 114 4x+14 = 114 4x = 114-14 4x = 100 x = 25 Therefore: width = 25 units and length = 32 units
x=width x+25=length 4x+50=130 4x=80 x=20 width is 20 length is 45
width = x and length = x+3 the perimeter = x + x +( x+3) +(x + 3) = 48, solve for x 4x + 6 = 48m 4x = 42 x = 10.5m (width) x+3 = 13.5m (length)
If the width is x then the length is x+15 and the perimeter is x+x+x+15+x+15 (length + length + width + width). So: x + x + x + 15 + x + 15 = 210 4x + 30 = 210 {group x's} 4x = 180 {take 30 from each side} x = 45 {divide by 4} The width is 45 feet.
Let the length be 4x and the width be x: 2(4x+x) = 60 8x+2x = 60 10x = 60 x = 6 So: length = 24 and width = 6 Area = length*width Area = 144 square inches
Say x = the rectangle's width. Then: x + x + (x + 4) + (x + 4) = 40 4x + 8 = 40 4x = 32 x = 8 So, the width is 8. Therefore, the length is 4 more, or 12 meters.
length is 4x and width is x: 4x*x = 80 4x2 = 80 Divide both sides by 4: x2 = 20 Square root both sides: x = 4.472135955
Let the length be x-12 and the width be x: 2(length+width) = perimeter 2(x-12+x) = 240 2x-24+2x = 240 4x = 240+24 4x = 264 x = 66 Therefore: length = 54 feet and width = 66 feet
Let the length be x+4 and the width be x: 2(length+width) = perimeter 2(x+4+x) = 20 2x+8+2x = 20 4x = 20-8 4x = 12 x = 3 Therefore: length = 7 cm and the width = 3 cm Area = length*width = 7*3 = 21 square cm
The Perimeter of a rectangle is 2(L+W). Let x represent the Width and x+5 represent the Length: 150 = 2(x+x+5) 150 = 2(2x+5) 150 = 4x+10 140 = 4x 35 = x The Width is 35m and the Length is 40m (35+5).
First find the dimensions of the rectangle. Let the length be x+4 and the width be x: 2(x+4+x) = 20 2x+8+2x = 20 4x = 20-8 4x = 12 => x = 3 Therefore: length = 7cm and the width = 3cm Area = length*width => 21cm2
Let the length be x+5 and the width be x:- Perimeter = 2*(x+5+x) or 4x+10