80 weeks
1,200+40x=400+50x
800+40x=50x
800=10x
x=80
Answer:4months
Step-by-step explanation:
Since the height is different on both ends, we can assume that the wall is a trapezoid. Knowing that, we can replace the measures we know in the formula and our onky variable is the length of the wall - we only need to isolate it.
A= ((b+B)h)/2
26.4=((2+2.4)h)/2
52.8=4.4h
h=12
Can you restate it or rewrite it? It doesn't have enough for me to answer this.