Final answer:
To find the original weight of the bag before the pretzels were removed, we use the equation w - 0.15 pounds = 0.25 pounds, which gives us w = 0.40 pounds as the original weight.
Step-by-step explanation:
The question relates to the subject of Mathematics and involves finding the original weight of a bag of pretzels before some quantity was removed. To help Michelle determine the weight w of the bag before she removed the pretzels, we can set up a simple equation. Given that she removed 0.15 pounds of pretzels and the bag afterward weighs 0.25 pounds, the original weight (w) would be the sum of these two numbers.
So, the equation we would use is:
w - 0.15 pounds = 0.25 pounds
To find w, we just add 0.15 pounds to both sides of the equation, which gives us:
w = 0.25 pounds + 0.15 pounds
w = 0.40 pounds
Therefore, the bag of pretzels weighed 0.40 pounds before Michelle removed any.