Answer:
m=8+3n
Step-by-step explanation:
Move all terms that don't contain m to the right side and solve.
Hope this helps <3
2W + 2L = 820
<span>LW = 42,000 or L = 42,000/W </span>
<span>substitute second equation into first equation: </span>
<span>2W + 2(42,000/W) = 820 </span>
<span>2W + 84,000/W = 820 </span>
<span>2W^2/W + 84,000/W = 820W/W </span>
<span>2W^2 - 820W + 84,000 = 0 </span>
<span>quadratic formula: </span>
<span>W = [820 +/- SQR(672,400 - 4(2)(84,000))]/2(2) </span>
<span>W = [820 +/- 20]/4 </span>
<span>W = 200, 210 </span>
<span>using second equation: </span>
<span>L = 42,000/200, 42,000/210 = 210, 200 </span>
<span>The dimensions of the parking lot are 200ft by 210ft.</span>
X + (x+3) = 28
<span>2 x + 3 = 28 </span>
<span>2x = 25 </span>
<span>x = 12.5 </span>
<span>x+3 = 15.5
28-15.5= 12.5
The two lengths are 15.5 and 12.5. </span>
Answer:

Step-by-step explanation:
Given
← factor the numerator and denominator
=
← cancel (x + 4 ) on numerator/ denominator
= 
Answer:?
I have no idea sir sorry yt ;-;
Step-by-step explanation: