Solve the problem.A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The average monthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp can accommodate up to 45 staff members and needs at least 30 to run properly. They must have at least 10 aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aides should the camp hire to minimize cost?
A. 35 counselors and 10 aides
B. 12 counselors and 18 aides
C. 27 counselors and 18 aides
D. 18 counselors and 12 aides
Answer: B
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Divide. Write the answer as a mixed number as needed.4
÷ 
A. 9
B. 6
C. 7
D. 8
Solve the problem.The probabilities that Hank will sell 0, 1, 2, or 3 cars this week are 0.15, 0.60, 0.24, and 0.01. Distribute the two-digit random numbers from 00 through 99 among these four possibilities so that the corresponding random numbers can be used to simulate the number of cars Hank sells in a week.
A. None of these B. 00 - 14, 15 - 74, 75 - 98, and 99 C. Not possible D. 00 - 15, 16 - 75, 76 - 98 and 99
What does l.c.m mean? ? a. The largest number that divides (evenly) into each of the numbers in the given set. b. The smallest number that each of the numbers in the set divides into evenly.
What will be an ideal response?
Write the system
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as a matrix equation AX = B, where A is the coefficient matrix of the system, X is a column matrix of variables, and B is the column matrix of constants. Multiply each side of the equation on the left by the matrix inverse of A to obtain an equivalent system of equations and solve it.
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A. 
B. ?
C. ?
D. ?
E. ?