THE CORRECT ANSWER IS (C). SINCE EITHER STATEMENT CONSIDERED ALONE...
30. The correct answer is (C). Since either statement considered alone involves a linear
equation in two variables, neither statement alone suffices to answer the question.
Consider the two statements together. Notice that, in each equation, the right side is
the same: the number 3. Thus, 5x
2
4y
5
4y
2
5x. This equation is equivalent to x
5
4
5
y.
Given that x
.
0, x must be less than y, and the answer to the question must be no.