The answer is 24. 35.50-24.00 is 11.50 and you add that with the 12.50 that he earned on Wednesday and you get 24 as the answer
The answer is to the question is C
Answer:
19.5959179423
Step-by-step explanation:
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.
