I'm looking at the problem 4P in the book An Introduction to Management Science. The answer is posted on this site, but the section with the constraints has the wrong screenshot. It is showing the answer to another problem.

The following data is provided:

Bean	Cost Per Pound	Available Pounds
1	$0.50	500
2	$0.70	600
3	$0.45	400

As well as the additional information:

Bean	Aroma Rating	Taste Rating
1	75	86
2	85	88
3	60	75

x₁ = # of pounds of coffee bean 1

x₂ = # of pounds of coffee bean 2

x₃ = # of pounds of coffee bean 3

With objective function:

Minimize Cost Z = .5x₁ + .7x₂ +.45x₃

So far the constraints I have are:

x₁ + x₂ + x₃ = 1000

x₁ <= 500

x₂ <= 600

x₃ <= 400

However, I cannot figure out the constraints to make the aroma blend at least a 75 rate;

And the taste rating at least an 80.

Any help is appreciated!