Write the system of inequalities that describes the possible solutions to the problem.A certain area of forest is populated by two species of animals, which scientists refer to as A and B for simplicity. The forest supplies two kinds of food, referred to as F1 and F2. For one year, an animal of species A requires 1.4 units of F1 and 1.2 units of F2. For one year an animal of species B requires 2.1 units of F1 and 1.8 units of F2. The forest can normally supply at most 913 units of F1 and 481 units of F2 per year. Let a represent the number of animals of species A and b represent the number of animals of species B.
A. 1.4a + 2.1 b ? 913
1.2 a + 1.8b ? 481
a ? 0, b ? 0
B. 1.4a + 2.1 b ? 913
1.2 a + 1.8b ? 481
a ? 0, b ? 0
C. 1.4a + 2.1 b ? 481
1.2 a + 1.8b ? 913
a ? 0, b ? 0
D. 1.4a + 1.2 b ? 913
2.1 a + 1.8b ? 481
a ? 0, b ? 0
Answer: B
Mathematics
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