Final answer:
After converting all measurements to centimeters, the length of the remaining piece of wallpaper was calculated to be 105 cm.
Step-by-step explanation:
To solve this problem, we first need to ensure all measurements are in the same units. The initial strip of wallpaper is 4.4 meters long, which is equivalent to 440 centimeters. The second piece was mistakenly mentioned as 154 meters long, which is not possible as the entire strip is only 4.4 meters, so we will assume it should be 154 centimeters. The third piece is 890 millimeters long, which we convert to centimeters by dividing by 10 to get 89 centimeters.
Now let's subtract the lengths of the pieces we know from the total length of the strip:
- First piece: 92 cm
- Second piece: 154 cm
- Third piece: 89 cm
Total length removed: 92 cm + 154 cm + 89 cm = 335 cm
To find the length of the remaining piece, we subtract this from the total length of the strip:
Length of remaining piece = Total length of the strip - Total length removed = 440 cm - 335 cm = 105 cm