en un parque hay una zona de columpios y una pista de patinaje que ocupa en total 5 quintos del espacio .si los columpios ocupan 2 septimos del parque . que fraccion del parque ocupa la pista de patinaje

Step-by-step explanation:

To solve this problem, we need to find the number which express the whole park.

Notice that the park is divided in two sections, one occupies 5/8 of the total, and the other occupies 2/7 of the total. So, the sum would be

Now we have the total space there, we need to divide 5/8 by 51/56, so

Therefore, the rink occupies 69% of the whole park, approximately, which is equivalent to 280/408.

(a) the volume of the cone is 20/3 in3

hence, option a is correct.