Answer:
54 inches
Step-by-step explanation:
18 inches x 3 = 54 inches
so they manufacture electric ones.
148-13=135
4x+13= - 3.25
6x+2 = - 0.33
1) SIMPLE SUBTRACTION
148
- 13
---------
135
2)
4x+13=0
4x= - 13
x= -13/4
x= - 3.25
3)
6x+2 = 0
6x= -2
x= -2/6
x = -0.33
3x + 2y = 170
4x + 6y = 360