Answer:
e=1
Step-by-step explanation:
Answer:12
Step-by-step explanation:
Answer:
= 25
Step-by-step explanation:
2 (-3)^2 - (4(-2) + 1)
2 (9) - (-8 + 1)
18 - (-7)
25
The student completed 13 courses with 3 credit hours.
Step-by-step explanation:
Total credit hours = 59 credits hours
Total courses = 18
Let,
3 credit hours courses = x
4 credit hours courses = y
According to statement;
x+y=18 Eqn 1
3x+4y=59 Eqn 2
Multiplying Eqn 1 by 3

Subtracting Eqn 3 from Eqn 2

Putting y=5 in Eqn 1

The student completed 13 courses with 3 credit hours.
Keywords: linear equation, elimination method
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