animexcartoons209
14.07.2019 •
Mathematics
Solve by setting up a system of linear equations with 2 variables and 2 unknowns. two hundred seventy six students enrolled in a freshmen-level chemistry class. by semester’s end, 5 times the number of students passed as failed. find the number of students who passed the chemistry course.
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Ответ:
Let us say ,
x=number of students who passed
y=number of students who failed
total number of students =276
x+y=276(1)
We are given 5 times the number of students passed as failed.
x=5y(2)
plugging value of x from (2) in (1),
5y+y=276
6y=276
y=46
x=5y=46*5=230
x=number of students who passed=230
Ответ: