Answer:
5) 12 pieces for $36
6) 12 pieces for $36
They require the same amount of wood pieces.
Explanation:
5)
Sandbox A: ? = 2
one side is 6, the other is 4 + ? = 6, so 6-4= ? and 6 - 4 = 2
now we add up the perimeter: 2 + 2 + 4 + 4 + 6 + 6 = 24ft total
we know that each wood piece = 2 ft so:
24 / 2 = 12 pieces of wood
each piece costs $3, so we multiply...
12 * 3 = $36 for all the wood.
____________
Sandbox B: ? = 4
one side is 6, the other is 2 + ? = 6, so 6 - 2= ? and 6 - 2 = 4
now we add up the perimeter: 2 + 2 + 4 + 4 + 6 + 6 = 24ft total
we know that each wood piece = 2 ft so:
24 / 2 = 12 pieces of wood
each piece costs $3, so we multiply...
12 * 3 = $36 for all the wood.