For this case, the first thing you should know is that the length of a football field is around 100 meters.
We must then look for a measure close to this value.
We have the following unit conversion:
1 meter = 10 decimeters
Applying the conversion we have:

Therefore, the measure closest to a soccer field is:
1000 dm
Answer:
The length of a football field is closest to:
(2) 1000 dm
Answer:
Fuel oil is mixed with a proper portion of compressed air
Explanation:
A gas turbine has three main part, which are
- combustion chamber
- air compressor
- power turbine
The combustion chamber is responsible for mixing fuel with a proper portion of compressed air.
The air compressor supplies air in sufficient quantity to satisfy the requirements of the combustion chamber
The power turbine produces the power to drive the air compressor.
B. 1520 is the difference between their weights.
I can't answer this question without a figure. I've found a similar problem as shown in the first picture attached. When adding vectors, you don't have to add the magnitudes only, because vectors also have to factor in the directions. To find the resultant vector C, connect the end tails of the individual vectors.
<em>The red line (second picture) represents the vector C.</em>