Respuesta :

sqdancefan

Answer:

  • 21 males
  • 8 females

Step-by-step explanation:

You want to know the numbers of males and females in a class if their total is 29 and there are 13 more males.

Setup

Let m and f represent the numbers of males and females, respectively. The problem statement tells us ...

  m + f = 29

  m - f = 13

Solution

Adding the two equations gives ...

  2m = 42

  m = 42/2 = 21

  f = 21 -13 = 8

There are 21 males and 8 females in the biology class.

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