Answer :
To find the approximate weight of 1 backpack, divide the total weight of 36.9 pounds by 5, resulting in an average weight of 7.38 pounds per backpack. This is rounded to 7.4 pounds assuming standard rounding rules for significant figures.
In this case, the total weight is 36.9 pounds. To find the weight of one backpack, we divide this total weight by 5 (the number of backpacks).
The calculation steps are as follows:
- Identify the total combined weight: 36.9 pounds.
- Identify the number of backpacks: 5.
- Divide the total weight by the number of backpacks: 36.9 / 5.
- Calculate the approximate weight of one backpack: 7.38 pounds.
Therefore, one backpack approximately weighs 7.38 pounds. Since the number of backpacks is an exact count and not a measurement with uncertainty, it does not affect the significant figures in the calculation. We can consider our answer to be precise to at least one decimal place, which gives us 7.4 pounds as the approximate weight per backpack.