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- I. 4x + 3y = 51 II. x + 4y = 29
Question 1:
I. 4x + 3y = 51 II. x + 4y = 29
A. if x>y
Feedback Correct Option: A
According to the given equations:
I. 4x + 3y = 51
3y = 51 – 4x
y = (51 – 4x)/3
II. x + 4y = 29
x + 4 × (51 – 4x)/3 = 29
3x + 204 – 16x = 87
204 – 87 = 16x – 3x
13x = 117
x = 9
y = (51 – 4x)/3 = (51 – 36)/3 = 15/3 = 5
After comparison of both equations, the conclusion is x > y
According to the given equations:
I. 4x + 3y = 51
3y = 51 – 4x
y = (51 – 4x)/3
II. x + 4y = 29
x + 4 × (51 – 4x)/3 = 29
3x + 204 – 16x = 87
204 – 87 = 16x – 3x
13x = 117
x = 9
y = (51 – 4x)/3 = (51 – 36)/3 = 15/3 = 5
After comparison of both equations, the conclusion is x > y
B. if x ≤ y
C. if x ≥ y
D. if x < y
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