Solve the problem by writing and using a system of linear equations.Find the amount of a 11% saline solution a lab assistant should add to 100 cc (cubic centimeters) of a 21% saline solution in order to have a 16% solution.
A. 150 cc
B. 0 cc
C. 10 cc
D. 100 cc
Answer: D
Mathematics
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Find the solution for x of the equation
.
?
A. 
B. ?
C. ?
D. There is no solution.
Mathematics
Fill in the blank with the correct inequality symbol, < or >, to make a true comparison statement.2 _____ 9
A. 2 > 9 B. 2 < 9
Mathematics
Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary. 5x - y + z = 8 7x + y + z = 612x + 2z = 14
A. {(x, -x - 1, -6x + 7)} B. {(x, -x + 1, 6x + 7)} C. {(x, -x + 1, -6x + 7)} D. {(x, -x + 1, 6x - 7)}
Mathematics
Find the reference angle for the given angle.94°
A. 14° B. 96° C. 4° D. 86°
Mathematics