Question

The width of a rectangle is 4 meters more then 1/3 its lenght. the perimeter is 64. Find the lenght and width

Answer 1

L = Lenght

W = Width

P = Perimeter


P = 64 m


W = 4 + L / 3

P = 2 * ( W + L ) = 64 m

64 = 2 * ( 4 + L / 3 + L ) Divide both sides with 2

32 = 4 + L / 3 + L

32 - 4 = L / 3 + L

28 = 4 L / 3 Multiply both sides with 3

28 * 3 = 4 L

84 = 4 L Divide both sides with 4

84 / 4 = L


L = 21 m


W = 4 + L / 3

W = 4 + 21 / 3

W = 4 + 7 = 11 m


Lenght = 21 m

Width = 11 m


P = 2 * ( W + L ) = 2 * ( 11 + 21 ) = 2 32 = 64 m

Answer 2

what is the lenght of a ractangale is 1cm more then twice is width.the diagonal of this rectang is 3 more than twice its find the with of this rectangle ?? and you can put both x on each side the equation should be equal to zero .