0.1111 if you want it as a decimal
The answer is
0.000568902892652.
We develop an equation for the given situation by first writing the general equation for lines,
y = mx + b
Substituting to this given the values given above,
(1990) 430 = b
(2000) 400 = m(10) + 430
The value of m from the equation in 2000 is -3. Thus, the equation of that relates the variables is,
y = -3x + 430
1/3
3/9
4/12
are equivalent to 2/6
