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Math·Algebra·Linear equations in two variables

easy

A total of 215 toothpicks of equal length were used to construct two types of figures: triangles and squares. The triangles and squares were constructed so that no two figures had a common side. The equation $3x+4y=215$ represents this situation, where $x$ is the number of triangles constructed and $y$ is the number of squares constructed. What is the best interpretation of $(x,y)=(25,35)$ in this context?

A

If 25 triangles were constructed, then 35 squares were constructed.

B

If 25 triangles were constructed, then 35 toothpicks were used.

C

If 35 triangles were constructed, then 25 squares were constructed.

D

If 35 triangles were constructed, then 25 toothpicks were used.