Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.25% of the lawyers in a firm are female. If there are 888 lawyers altogether, how many lawyers are female?
A. 222 lawyers
B. 3552 lawyers
C. 666 lawyers
D. 3 lawyers
Answer: A
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Solve.
+ 
= 
A. 3 B. 7, 2 C. -7, -2 D. 7
Solve the problem.In 1995 the United States recovered 27% of its municipal wastes through recycling, up from 17% in 1990. Let P represent the percentage recycled and t the number of years since 1990. Find a linear function P(t) that fits this data. Use this function to predict the percentage recycled in 2001.
A. 40.7% B. 39% C. 35.4% D. 37.1%
Use the simplex method to solve the linear programming problem.Maximizez = 2x1 + 5x2 + 3x3subject to: 2x1 + x2 + 3x3 ? 9 4x1 + 3x2 + 5x3 ? 12withx1 ? 0, x2 ? 0, x3 ? 0
A. Maximum is 60 when x1 = 0, x2 = 9, x3 = 5 B. Maximum is 12 when x1 = 6, x2 = 0, x3 = 0 C. Maximum is 45 when x1 = 0, x2 = 9, x3 = 0 D. Maximum is 20 when x1 = 0, x2 = 4, x3 = 0
Simplify.{[57 - 2 ? 2] - [81 ÷ (1 + 2)]} ? 8
A. 208 B. 192 C. 256 D. 296