Question

If 0.4x + 0.16y = 1.7 and 0.3x + 0.12y = 3.4, then which of the following is correct?

Q: Answer-If 0.4x + 0.16y = 1.7 and 0.3x + 0.12y = 3.4, then which of the following is correct?

Given 1 0.4x 0.16y 1.7 2 0.3x 0.12y 3.4 Multiply 1 by 3 1.2x 0.48y 5.1 Multiply 2 by 4 1.2x 0.48y 13.6 Now subtract the two 0 13.6 - 5.1 0 8.5 Contradiction No solution. The system is inconsistent.

A The system has finitely many solutions but not unique.

B The system has infinitely many solutions.

C The system has no solution.

D The system has unique solution.

Practice Next

If 0.4x + 0.16y = 1.7 and 0.3x + 0.12y = 3.4, then which of the following is correct?

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