1000 cm + 114 m + 12 km + 160 mm = "12124160 mm" = "1.212 x 10⁷ mm"
In order to get the sum of all the lengths in millimeters (mm), we need to convert all the values of lengths into millimeters (mm), before adding them.
We shall use the unitary method of conversion here. In this method, the value is multiplied by the fractional unit of conversion from one unit to the other.
[tex]1000\ cm + 114\ m + 12\ km + 160\ mm = mm\\\\1000\ cm + 114\ m + 12\ km + 160\ mm = 1000\ cm(\frac{10\ mm}{1\ cm}) + 114\ m(\frac{1000\ mm}{1\ m}) + 12\ km(\frac{1000000\ mm}{1\ km}) + 160\ mm\\\\1000\ cm + 114\ m + 12\ km + 160\ mm = 10000\ mm + 114000\ mm + 12000000\ mm + 160\ mm\\\\[/tex]
1000 cm + 114 m + 12 km + 160 mm = 12124160 mm = 1.212 x 10⁷ mm
Learn more about unit conversion here:
https://brainly.com/question/14601718?referrer=searchResults
The attached picture shows different unit conversion factors.
