It's D i just took the test, I'm sure of it
Answer:
A=L*W
Let w be width
L=(w+6)
40=(w+6)*w
40= w^{2} +6w
w^{2} +6w-40=0
w^{2}+10w-4w-40=0
w(w+10)-4(w+10)=0
(w-4)(w+10)=0
w=4
Length= 10 units
Width=4 units
Step-by-step explanation:
X=-6
you could either multiply 9 on both sides or distribute the 9 and isolate the variable
20% is alcohol and 80% is water hope this helped
Is there a question that goes with this command?