Perimeter of a rectangle= 2(length)+2(width)
Data:
Perimeter=108 cm
length=18 cm
therefore:
108 cm=2(18 cm)+2(width)
108 cm=36 cm+2 (width)
2 width=108 cm -36 cm=
2 width=72 cm
width=72cm/2
width=36 cm
Answer: the width of the picture frame would be 36 cm.
ADDING THE 2 EQUATIONS TO ELIMINATE Y WE HAVE
-2.98x = -8.94
x = 3
Plug x=3 into first equation:-
-0.18(3) + y = -6.54
y = -6.54 +0.54 = -6
answer x= 3 and y= -6.
The two triangular ends have area (3 cm)*(4 cm) = 12 cm^2, so the area of the rectangular faces is (204 -12) cm^2 = 192 cm^2. The sum of lengths of those rectangular faces is (3 cm +4 cm +5 cm) = 12 cm, so the width is given by
.. 192 cm^2 = (12 cm)*x
.. (192 cm^2)/(12 cm) = 16 cm = x
The 2nd selection is appropriate.
Answer:
3x+4y= -11
Step-by-step explanation:
