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A geometry class has a total of 47 students. The number of females is 7 less than the number of males. How many males and how many females are in the class?

Answer provided by our tutors

Let

x = the number of males

y = the number of females

The total number of students is 47 means:

x + y = 47

The number of females is 7 less than the number of males means:

y = x - 7

We need to solve the following system of equations:

x + y = 47

y = x - 7

........

Click here to see the step by step solution for the system of equations

........

x = 27 males

y = 20 females

There are 27 males and 20 females in the class.

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