Respuesta :
Answer:
Explanation:
The area of a rectangle (assuming the sandbox is rectangular) is:
A
=
l
×
w
where:
A
is the Area of the rectangle: 26 square feet for this problem.
l
is the Length of the rectangle: 5 feet for this problem.
w
is the Width of the rectangle: What we are solving for in this problem.
Substituting for
A
and
l
and solving for
w
gives:
26
ft
2
=
5
ft
×
w
26
ft
2
5
ft
=
5
ft
×
w
5
ft
26
ft
×
ft
5
ft
=
5
ft
×
w
5
ft
26
ft
×
ft
5
ft
=
w
26
ft
5
=
w
Or
26
5
ft
=
w
Or
5
1
5
ft
=
w
Step-by-step explanation:
Answer:
Length = 8 ft. Width = 5ft.
Step-by-step explanation:
We know:
P = 26
L = (w + 3)
W = ?
We must first develop an equation for the problem.
P = 2(L + W)
Fill in what we know
26 = 2[(w + 3) + w]
Solve for W
26 = 2[2w + 3]
26 = 4w + 6
4w = 20
w = 5
Solve for L
L = (5 + 3)
L = 8
Check
P = 2(L + W)
Fill in what we know
26 = 2(8 + 5)
Solve
26 = 16 + 10
26 = 26
True!