The perimeter of rectangular garden is 40 feet. The width is 2 feet more than half the length. What is the length and width

3 answers

P = 2 W + 2 L = 2 ( W + L ) = 40

2 ( W + L ) = 40 Divide both sides by 2

W + L = 20

W = 2 + L / 2

W + L = 20

2 + L / 2 + L = 20

2 + L / 2 + 2 L / 2 = 20

2 + 3 L / 2 = 20 Subtract 2 to both sides

2 + 3 L / 2 - 2 = 20 - 2

3 L / 2 = 18 Multiply both sides by 3

3 L = 36 Divide both sides by 3

L = 12 ft
3 L / 2 = 18 Multiply both sides BY 2

3 L = 36 Divide both sides by 3

L = 12 ft
A box has a volume of 990 cubic centimeters. Each side of the box has a length that is about 1.5 centimeters longer than the oube-shaped object in the box. The equation 990(x+ 1.59)^3 can be used to determine x, the length of each side of the object, in centimeters. Which estimate is closest to the length of each side of the object?