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Sagot :
Answer:
- A. 13
Step-by-step explanation:
Note: It seems typo in the question. 5% should read 59.
Let 3 credit courses = x, 4 credit courses = y
As per given we have following equations:
- x + y = 18
- 3x + 4y = 59
Solve the system by elimination. Multiply the first equation by 4 and subtract the second one:
- 4(x + y) - (3x + 4y) = 4(18) - 59
- 4x + 4y - 3x - 4y = 72 - 59
- x = 13
The answer is 13
Correct choice is A
I think its A.
the answer is 12.9045.
which is close to 13.
I hope this helps.
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