Students

The class has 22 students. 2 of which have assessments of 2. The count of assessment of 1 is three times more than the count of students with an assessment of 3. How many students have an assessment of 1, and how many students have an assessment of 1.

Correct answer:

x =  15
y =  5

Step-by-step explanation:

x+y=22-2
x = 3y

x+y=22-2
x = 3•y

x+y = 20
x-3y = 0

x = 15
y = 5

Our linear equations calculator calculates it.

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