Solve the system algebraically.5x - y = -104x + y = 1
A. (-1, -5)
B. (1, 5)
C. no solution
D. (-1, 5)
Answer: D
Mathematics
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Solve the problem.A convention manager finds that she has $1130, made up of twenties and fifties. She has a total of 34 bills. How many fifty-dollar bills does the manager have?
A. 15 fifty-dollar bills B. 19 fifty-dollar bills C. 10 fifty-dollar bills D. 34 fifty-dollar bills
Mathematics
Solve the system of equations.0.1x + 0.3y + 0.4z = -0.10.1x - 0.4y + 0.2z = -1.60.4x - 0.4y - 0.4z = 0.8
A. (0.2, 2, -2) B. (0.3, 3, -2) C. (2, 3, -3) D. (0.3, 2, -3)
Mathematics
Simplify.
+ 11 + 
? 4
A. 27
B. 
C. 
D. 12
Mathematics
Find the area.
A. 11,858 ft2 B. 5929 ft2 C. 154 ft2 D. 308 ft2
Mathematics