Answer:
2x+20 + x+40 = 180
Step-by-step explanation:
The angles are supplementary so they add to 180
2x+20 + x+40 = 180
The scale factor applied to the model is 8000. 8000 times one equals 8000
24 divided by 21 is 1.14285714286. In fraction form it is 8/7, or 1 1/7.
We know that 
.
Solve using cross multiplication of the last two fractions. I will use 
to represent the width of the rectangle. 
Multiply. 
Divide both sides of the equation by 
. 
10/45 for black
12/45 for green
3/45 for orange (can be simplified to: 1/15)
20/45 for blue
