Problema Solution
Suppose you wish to build a cement patio that is to have the perimeter of 126ft. The lenth is to be 6ft more than the width.
A.)the width of the patio is?
B.)The lenth of the patio is?
C.)you need to purchase how many cubic feet of cement?
Answer provided by our tutors
Perimeter, which is 126 feet, is equal to 2 * length + 2 * width. So we have
2l + 2w = 126.
Since the length must be 6 feets longer than the width, then l = 6 + w.
Now, substitute the second equation into the first to get
2(6 + w) + 2w = 126.
Solve for w:
12 + 2w + 2w = 126
4w = 114
w = 28.5 feet
Add 6 to that to get the length, which is 34.5 feet.