Set up equations like this (keep in mind that perimeter of a rectangle is all sides added up, so two lengths and two widths):
2l + 2w = 340
l = w + 10
Plug (w + 10) in for l in the first equation and solve for w:
2(w + 10) + 2w = 340
2w + 20 + 2w = 340
4w + 20 = 340
4w = 320
w = 80
The width of the field is 80 yd. Plug 80 in for w in either equation:
l = 80 + 10
l = 90
The length of the field is 90 yd.
\left[x \right] = \left[ \frac{-1}{4}\right][x]=[4−1] = x*3 +3x*2+6) - (9x*2-5x+7
Answer:
30 game boxes
Step-by-step explanation:
We have to multiply the number of each shelf by the number of game boxes,
The store has 6 shelves and 5 game boxes on each shelf.
Therefore, the number of game boxes that there are is:
6 * 5 = 30 game boxes
For the first one you would use substitution, and the second and third one you would use elimination.
HOPE THIS HELPS! ^_^