a spanish class has a total of 46 students. the number of males is 4 more than the number of females. how many males and how many females are in the class?

There are 25 males and 21 females in the class

Step-by-step explanation:

Let us use the equation to solve the question

∵ A Spanish class has a total of 46 students

∵ The number of males is 4 more than the number of females

→ Assume that the number of females is x

∵ The number of females = x

∴ The number of males = x + 4

→ Add the numbers of males and females and equate the sum by 46

∴ x + x + 4 = 46

→ Add the like terms in the left side

∴ 2x + 4 = 46

→ Subtract 4 from both sides

∴ 2x + 4 - 4 = 46 - 4

∴ 2x = 42

→ Divide both sides by 2

∴

∴ x = 21

∵ x represents the number of females

∴ There are 21 females

∵ x + 4 represents the number of males

∴ The number of males = 21 + 4 = 25

∴ There are 25 males

Step-by-step explanation:

Given

Peter hits

Mary hits

Required

The probability that Mary wins

From the question, we understand that Peter throws the first.

If Mary is to win, then Peter has to lose his throw

Using the complement rule, the probability that Peter misses is:

So, the probability that Mary wins is:

This gives: