Solve.Yvette has up to $4000 to invest and has chosen to put her money into telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 2 times the pharmaceuticals investment. Write a system of inequalities to describe the situation. Let x represent the amount (in dollars) invested in telecommunications and y represent the amount (in dollars) invested in pharmaceuticals.
A. x + y ? 4000, x ? 2y, x ? 0, y ? 0
B. x + y = 4000, y ? 2x, x ? 0, y ? 0
C. x + y ? 4000, 2x ? y, x ? 0, y ? 0
D. x + y = 4000, x ? 2y, x ? 0, y ? 0
Answer: A
Mathematics
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