The dairy farmer would mix 1120 pounds of 75% protein supplement and 280 pounds of 50% protein ration to make 1400 pounds of a high grade 70% protein ration.
<h3>What is an equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Let x represent the amount of 75% protein supplement and y represent the amount of 50% protein, hence:
x + y = 1400 (1)
Also:
0.75x + 0.5y = 0.7(1400) (2)
Hence:
x = 1120, y = 280
The dairy farmer would mix 1120 pounds of 75% protein supplement and 280 pounds of 50% protein ration to make 1400 pounds of a high grade 70% protein ration.