Suppose that in the United States, producing an aircraft takes 10,000 hours of labor and producing a shirt takes 2 hours of labor. In China, Producing an aircraft takes 40,000 hours of labor and producing a shirt takes 4 hours of labor. What will these nations trade?

China should trade Aircraft to Shirt and American should trade shirt to Aircraft.

Step-by-step explanation:

We should make a comparison table between two country

                ChinaAmerica  

1 Aircraft  40000100000

1 Shirt          4               2

It is clear that China's labor productivity in aircraft production is more outstanding than America and America's labor productivity in shỉrt production is better.

So China should trade Aircraft to Shirt and American should trade shirt to Aircraft.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204