Solve the problem by solving a system of equations graphically.One number is double another number. Their difference is 6. Find the numbers.
A. 2, 1
B. 6, 3
C. 24, 12
D. 12, 6
Answer: D
Mathematics
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Use a truth table to determine whether the argument is valid.(~p ? q) ? (q ? r)~q ? r p ? q
A. Valid B. Invalid
Mathematics
Write as a percent.0.55
A. 550% B. 55% C. 0.055% D. 5.5%
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Divide.54 / (-6)
A. 9 B. -9 C. -10 D. 10
Mathematics
Find an equivalent fraction with the given denominator.
= 
A. 
B. 
C. 
D. 
Mathematics