# Motor oil

30 liters of oil cost 28.80 Euros. How much cost a liter?

Result

x =  0.96 Eur

#### Solution:

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#### To solve this example are needed these knowledge from mathematics:

Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

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