For a science experiment, Mr. Duncan mixed 0.00055 pounds of sulfur and 0.00104 pounds of iron powder in a test tube before heating it. What is the total weight of the mixture in the test tube?
To find the total weight of the mixture, we need to add the weight of the sulfur and the weight of the iron powder together.
Total weight of the mixture = weight of sulfur + weight of iron powder
Total weight = 0.00055 pounds + 0.00104 pounds
Total weight = 0.00159 pounds
Therefore, the total weight of the mixture in the test tube is 0.00159 pounds.