Identify the target percentage of stain left.
This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
QUESTION 14:
Step 1: Identify the target percentage of stain left.
If 50% of the stain is removed, then $100\% - 50\% = 50\%$ of the stain is left.
Step 2: Locate 50% on the Y-axis (Percentage (%) of stain left).
Step 3: Follow horizontally from 50% on the Y-axis to intersect the curve.
Step 4: From the intersection point, follow vertically down to the X-axis (Time soaked (minutes)).
The reading on the X-axis is 3 minutes.
The correct option is C.
$$\boxed{\text{C. 3 minutes}}$$
QUESTION 15:
