Ahyoka has 250 cds.10% are country, 70% are pop, and the rest are hip-hop. how many cds are hip-hop?

Step-by-step explanation:

Givens

According to the problem, 10% of all CDs are country and 70% are pop, that gives a total of 80%. That means 20% of all CDs are hip-hop, because is the remaining part.

Now, we have to find the 20% of 250. We know that 20% equals 0.20, then

Therefore, 50 CDs are hip-hop.