A spool contains 9 meters of ribbon. How many 0.225-meter pieces of ribbon can be cut from the spool?

9/0.225 = ?

number=totalLength/sizeofEach=9/.225

To find out how many 0.225-meter pieces of ribbon can be cut from the spool, we need to divide the total length of the ribbon on the spool by the length of each piece.

First, let's calculate the number of pieces:
Number of pieces = Total length of the ribbon / Length of each piece

In this case:
Total length of the ribbon = 9 meters
Length of each piece = 0.225 meters

Using the formula:
Number of pieces = 9 meters / 0.225 meters

To perform the division:
Divide 9 by 0.225 to get the answer.

Calculating this division:
Number of pieces = 40

Therefore, we can cut 40 pieces of 0.225-meter ribbon from the spool.