1 foot is 12 inches
Convert everything to inches:
28 x 12 = 336 in.
39 x 12 = 468 in.
Add all the inches together:
336 + 468 + 7 + 8 = 819 in.
The answer is 819 inches.
The greatest amount of friends he can have is 7
32 boxes of oj + 56 boxes of aj = 90 boxes of juice
If a self can only hold 8 boxes of juice, then you need to divide 90 by 8.
90/8 = 11.25
This means that they need at least 12 shelves for all the Juice boxes.
Y=6x (1)
y=5x-7 (2)
Substitute y into (2)
(6x)=5x-7 -- subtract 5x from both sides
x=-7
Sub x into 1
y=6(-7)
y=-42
x=-7
y=-42
