Answer:
x=0
Step-by-step explanation:
Anything to the power of 0 = 1
Step-by-step explanation:
1. 16
2. 16
3. 24
4.39
5. 68
6. 51
A = -6
b = 48
Hope this helps :)
Let x represent the amount to be added. The total amount of tin will be
15%·20 + 10%·x = 12%·(20+x)
(15%-12%)·20 = (12%-10%)·x
3%·20/2% = x
30 = x
30 pounds of 10% tin must be added to get a 12% mixture.
