Problema Solution
System of equations.
24 students took a test. the number of passing scores was 4 less than 3 times the number of failing scores. How many student's passed?
Answer provided by our tutors
Let
x = the number of students that passed
y = the number of students that failed
x + y = 24
x = 3y - 4
........
click here to see the system of equations solved for x and y
........
x = 17 passing scores (students that passed)
y = 7 failing scores (students that failed)
!7 students passed.