If Jim measured a nail to be 150 millimeters long, how long is it in centimeters?

To convert millimeters to centimeters, it's important to know the relationship between the two units of measurement. Specifically, 1 centimeter is equal to 10 millimeters. Therefore, to convert millimeters to centimeters, you can divide the number of millimeters by 10.

In this case, Jim measured the nail to be 150 millimeters long. To find its length in centimeters, you would perform the following calculation:

150 millimeters ÷ 10 = 15 centimeters.

This means that a 150 millimeter long nail is equivalent to 15 centimeters. Thus, the correct answer is 15 centimeters. Understanding this conversion factor is crucial, as it allows for the accurate translation between millimeters and centimeters.