area of a rectangle = L x W
width = y
L = y +4
so area = y(y+4) sq. ft.
Answer:
line a and line c are parallel
Step-by-step explanation:
y-4x=6
+4x +4x
y=6+ 4x
-----
y-4x=4
+4x +4x
y=4+4x
Answer:
The right answer would be C!
It’s gotta be C since the “b” term in the equation shows the y intercept; -3 is less than the rest. Don’t listen to the other guy commenting here!
Dup= 72 miles
<span>ddown= 120 miles </span>
<span>v= riverspeed </span>
<span>rup= 32mph - v </span>
<span>rdown= 32mph + v </span>
<span>t both ways= t </span>
<span>d=r*t </span>
<span>d/r=t </span>
<span>t=ddown/rdown </span>
<span>t=dup/rup </span>
<span>dup/rup = ddown/rdown </span>
<span>(72)/(32-v)=(120)/(32+v) </span>
<span>3840-120v=2304+72v </span>
<span>1536=192v </span>
<span>v=8</span>
