Solving Problems

1. Answer: b. "the wind speed decreases by 10 miles per hour for every kilometer you travel from the center".
   This key fact tells you that if you multiply your distance from the center of the storm by 10, and then subtract that number from the wind speed at the center, you will get the wind speed at your current location. This relationship could be expressed as: (WIND SPEED WHERE YOU ARE) = (WIND SPEED AT CENTER) – 10 (YOUR DISTANCE FROM CENTER).


2. Answer: c. The distance between your current location and the center of the storm.
   The variable in your equation will be the unknown quantity in the problem. Since you are trying to find your distance from the storm's center, distance is the correct variable to use in the equation. You can then answer the problem by solving the equation.


3. Answer: b. Wind speed at center of storm – 10 Distance between current location and center of storm.
   Wind speed decreases by 10 miles per hour for every kilometer from the center of the storm. Therefore, you need to multiply your distance from the center by 10, and then subtract it from the wind speed at the storm's center.