## From Another Dimension

Just as there are 12 inches in one foot, there are 100 centimeters in one meter. The labels on the ends of these numbers are called units or dimensions.

**Dimensional Analysis**is the process of changing the units on a number, usually to make a number more manageable. We might say a certain event took place 20 years ago, but we would seldom say that it took place 7,300 days ago. The amount of time is the same, but by changing the years into days, we change not just the unit, but the number in front of the unit.**Note: Dimensional Analysis is also known as "The Factor-Label Method" or "Unit Analysis".*

**Journal #15**

Convert the following. Show your work.

a. 600 days to years

b. 14 centuries to years

c. $3.50 to quarters

d. 900 centimeters to meters