Answer:
I believe it is associative property of addition or commutative
Step-by-step explanation:
Answer:
length= 710 width= 420
Step-by-step explanation:
As we consider a rectangle we can replace "length" with l and "width" with w so that the perimeter will be:
2l+2w= 2260
With the length as:
l= w+290
The length, substituted into the perimeter is:
2(w+290)+2w=2260
Distribute:
4w+580=2260
Subtract:
4w=1680
Divide:
w=420
To find the length, take the width and add 290:
420+290=710
l=710
Answer:
Step-by-step explanation:
-3x^2 - 10x - x^2 - 6x
-4x^2 - 16x
<span>Addition property of equality</span>
