subsitute x = 6 into the lengths
3(6) -7
18 - 7
11cm
(6) + 5
11cm
therefore it is a square when x = 6 because the sides are all equal
Answer:
Step-by-step explanation:
Answer:
The side length of of the base of the tank is 15 inches.
Step-by-step explanation:
We are given the following in the question:
Cost of the tank and filter system = $280
Perimeter of tank base = 60 inches
The perimeter of tank is in the shape of square.
We have to find the side length of the base of the tank.
Perimeter of tank base = Perimeter of square =

Thus, the side length of of the base of the tank is 15 inches.
5/3. / 35/6
5/3 * 6/35= 30/105= 6/21= 2/7. The answer to the question is b. 2/7
Answer:
264,000
Step-by-step explanation:
6,600
x 40
_______
264,000