4x+30=90
4x = 60
x = 15
answer is B. 15
Answer:
15 feets
Step-by-step explanation:
Perimeter of a rectangle = 2(l + w)
l = Length ; w = width
Perimeter, p = 48
Length of all sides
p = 2(l + w)
48 = 2(l + 9)
48 = 2l + 18
48 - 18 = 2l
30 = 2l
l = 30/2
l = 15
Length of the sides = 15 feets
Answer:
(7x+4) and (4x)
Step-by-step explanation:
The two expressions are (7x+4) and (4x)
<h3><u>D</u></h3>
If ΔXYZ ≅ ΔDEF, then X = D, Y = E and Z = F.
Answer:
<u>x = -2</u>
<u>y = -6</u>
Step-by-step explanation:
<u>Equating the equations</u> :
- x - 4 = 4x + 2
- 3x = -6
- x = -2
