I would say 36.8
But I am it sure
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.
Answer:
The answer is 1
Step-by-step explanation:
Answer:
Step-by-step explanation:
16 ae =x
<span>No, she did not use the distributive property correctly.</span>