4.4x + 1.9(200-x) = 520
4.4x + 380 - 1.9x = 520
x = 56
56 ounces of the $4.40 per ounce alloy
200 - 56 = 144 ounces of the $1.90 per ounce alloy
Answer:
6
Step-by-step explanation:
i dont know
I think we cannot find the sum because it will continue on so the series is multiply by 4