Question

Gregory can buy​ 4 pounds of wheat flour for​ $8 and 5 pounds of rye flour for​ $20. He has​ $12 to spend on a flour mixture. What linear equation in standard form can Gregory use to model the​ situation?

Answer 1

• 2x + 4y = 12

Explanation:

Wheat flour

• 4 pounds for $8 ⇒ 1 pound for $8/4 = $2

Rye flour

• 5 pounds for $20 ⇒ 1 pound for $20/5 = $4

Equation for total:

• 2x + 4y = 12