Q: The length of a rectangle is equal to three times its width if the perimeter is equal to 40 feet what is the length of the rectangle?

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64 meters

ok, i figured it out. the length of the triangle is 5, 4, 3. the four is 1/2 the length of one side of the rectangle. so the rectangle sides are 8, 8, 3, 3 (one three being one side of the rectangle as well)

Width = 9 inches Length = 30 inches

The rectangle is 12 units by 3 units.

Write a a series of equations as follows p=2l+2w (formula for perimeter) a=l*w (Formula for area) l=3w (fact given in the question) a=147 (fact given in hte question) We don't currently have enough information to solve the perimeter formula for this rectangle, so we begin with the area formula to get more information. By substituteing 147 for the variable a and 3w for the variable l, we arrive at this equation: 147=w*3w With only one variable, we can solve this equation by isolating w on one side as follows 147=3w2(Multiply w by w to combine like terms) 147/3=3w2/3 (divide both sides by 3) 49=w2 sqrt49=sqrtw2(square root of both sides) 7=w We now know that the width of the rectangle is 7. We also know that the length is three times that, which is 21. We can substitute these values into the perimeter eequation as follows: p=(2*7)+(2*21) p=14+42 p=56 The perimeter of the rectangle is 56

Related questions

63 feet

the length is equal to 160,083

The perimeter of a rectangle is equal to 2*length + 2* width. In this case, we will say 2x + 2y = p = 48. Since the length is equal to 3 times the width, the equation now becomes p = 6*y + 2*y, or just p = 8y. Now since p =48, y must equal 6. And since the length is three times the width (y), the length is 18.

Width: 8.5 Length: 25.5

call width x so length is 3x perimeter is (2*length)+(2*width) so perimeter is 8x

dont is answer

64 meters

L + W = P/2 = 72 feet L = 3W so L = 3/4 x 72 = 54 feet

If it is a rectangle then: 2*(3.4+6.125) = 19.05 which is its perimeter

Area = 8*24 =192 square feet Perimeter = 24+24+8+8 = 64 feet

This is true. A square, which has four equal sides, will have a perimeter equal to four times the length of a single side.An equilateral triangle, which has three equal sides, will have a perimeter equal to three times the length of a single side.Any regular polygon contains all sides of the same length, therefore, the perimeter of a shape with a certain number of sides will be equal to the length of one side multiplied by the number of sides.

Perimeter = (length+breadth) times 2 = (3 + 3/8) x 2 = 66/8 = 63/4