Answer:
12 lbs of $7.80
38 Lbs of $4.30
Step-by-step explanation:
50(5.14)=7.8(x)+4.3(50-x)
257=7.8x+215-4.3x
42=3.5x
12=x, this is how many pounds of $7.80 you need, then subtract 12 from 50 to see how many pounds of $4.30 you need and check your answer