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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?
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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.