It should be k= 4 or -1/3
Answer:
length=53 in
width= 23 in
Step-by-step explanation:
First, we know that each corner has now a square of 6 in long, so the heigth of the box will be of this size (as you can see in the picture attached). Then, the length and the width of the box would be the same as the piece, but with 12 in less. Therefore the equations to solve the problem are:

We factorize the 6 and we get:

Finally we solve for x, and we get the initial dimensions of the piece of metal:


Answer:

Step-by-step explanation:
The point-slope form of an equation of a line:

m - slope
We have the slope
and the point
.
Substitute:

- point-slope form
Convert to the slope-intercept form (y = mx + b):
<em> use the distributive property</em>
<em>add 4 to both sides</em>
- slope-intercept form
The equation is y=mx+c
C=8
M=-1
×=4 since you divide 3 and 12 by 3
So it would be 13-16 (4×4)
Your answer is -3