Cho is making a rectangular garden, where the length is x feet and the width is 2x + 1 feet. He wants to add garden stones around the perimeter of the garden once he is done. If the garden is 6 feet long, how many feet will Cho need to cover with garden stones? Cho will need to cover______ feet with garden stones.
The length of the garden 6 feet. Because the length is also represented by 'x', we can say that x = 6. Then, we can substitute 6 in for x in the width's equation and simplify into 13 feet. Finally, we can plug those numbers into the equation to find the perimeter of a rectangle and simplify.
x = 6 2(6) + 1 = w (width) 12 + 1 = w 13 = w & 6 = l (length)
2(l) + 2(w) = p (perimeter) 2(6) + 2(13) = p 12 + 26 = p 38 = p
Cho will need to cover 38 feet with garden stones.
