To determine the ratio (r) of people to books, simply divide the number of people (P) to the number of books (B). This is shown in the equation below.
r = P / B
Substituting the given values,
r = 50 people / 4,000 books
r = 1 / 80
Thus, the ratio of people to books is 1:80.
35 cats (70%) 15 dogs (30%)
50 x 70% = 35
50 - 35 = 15 (remaining 30%)
1. Find the amount of cats.
2. There are 50 dogs and cats, 30% are dogs.
3. multiplication
4. Formula shown above
Hope this helps!
