Final answer:
To determine the decimal representing the part of the floor with colored tiles, calculate the total number of tiles and divide the number of colored tiles by this total.
Step-by-step explanation:
The question asks to calculate the part of the floor that is covered with colored tiles in decimal form. To find the answer, you would first need to determine the total number of tiles on the floor, which is given by the pattern's width times its length. Given a pattern that is 10 tiles wide and 10 tiles long, we multiply 10 by 10 to get 100 tiles in total.
If the question had specified the number or fraction of those tiles that are colored, you would then divide the number of colored tiles by the total number of tiles. For example, if 40 out of 100 tiles are colored, then the part of the floor with colored tiles is 40 divided by 100, which equals 0.40.
However, without the specific information on how many tiles are colored, it is impossible to determine what part of the floor is covered with colored tiles. If additional information is provided, you can use the method described above to calculate the desired decimal.