Answer:










Step-by-step explanation:

 
        
             
        
        
        
We are given that Peter buys 12 bunches of bananas for 9.00. 
We need to determine how much peter will pay for 8 bunches.
Let us set up proportion now.
12 bunches of bananas for 9.00 = 12 : 9
Let us assume Peter will pay for 8 bunches = $x.
Therefore, 8 bunches of bananas for x = 8 : x.
<h3>Setting up proportion:</h3><h3>

</h3>
On cross-multiplying, we get
12x = 9×8
12x = 72.
Dividing both sides by 12, we get 

x=6.
<h3>Therefore, Peter will pay $6 for 8 bunches.</h3>
 
        
             
        
        
        
The first thing we are going to do for this case is define variables.
 We have then:
 x: Amount of soybean meal
 320 - x: quantity of cornmeal
 We now write the equation that models the problem: 

 Rewriting we have: 

 From here, we clear x: 

 Then, the amount of Soybean meal is: 

 The amount of cornmeal is: 
 Answer:
 Answer:
 cornmeal: 280 lb
 Soybean: 40 lb.