Negative
Positive
Positive
Negative
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.
Well, here goes.
Boatesville is 50.4km far from Stanton (when you do 63×4/5).
A bus needs to travel 8km more to get to Boatesville. Difference is your answer.
50.4km-8km= bus has travelled 42.4km
Answer:
18 x 320=5,760 pieces of paper
Step-by-step explanation:
5,760
