a fruit grower can use two types of fertilizer in his orange grove, brand A and B. the amounts (in pounds) of nitrogen, phosphoric acid, and chloride in a bag of each brand are given in the table. tests indicate that the grove needs at least 2800 pounds of phosphoric acid and ar most 600 pounds of chloride.
Nitrogen (A) 5 (B) 4
Phosphoric acid (A) 8 (B) 8
Chloride (A) 2 (B) 1
1. If the grower wants to maximize the amount of nitrogen added to the grove, how many bags of each should be used? How much nitrogen will be added?

Question

a fruit grower can use two types of fertilizer in his orange grove, brand A and B. the amounts (in pounds) of nitrogen, phosphoric acid, and chloride in a bag of each brand are given in the table. tests indicate that the grove needs at least 2800 pounds of phosphoric acid and ar most 600 pounds of chloride. 
Nitrogen (A) 5 (B) 4
Phosphoric acid (A) 8 (B) 8
Chloride (A) 2 (B) 1
1. If the grower wants to maximize the amount of nitrogen added to the grove, how many bags of each should be used? How much nitrogen will be added?