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of salt can be extracted from one liter of sea water. How much salt can be extracted from 400 liters
of water?cc BB
Step 1: The number of kilograms of salt that can be extracted from 400 liters of ocean water = the number of kilograms of salt extracted from 1 liter of ocean water × 400
Step 2: [Substitute the value.]= 0.042 × 400
|0.042 ||[3 decimal places.]|
|× 400 ||[No decimal places.]|
| 16.8 ||[1 decimal place.]|
Step 4: The number of kilograms of salt that can be extracted from 400 liters of ocean water is 16.8 kilograms.