Solve the system of equations using substitution.
A. x = 6, y = 12
B. x = -2, y = 20; x = -9, y = 27
C. x = 2, y = 16; x = 9, y = 9
D. x = 2, y = 20; x = 9, y = 9
Answer: C
Mathematics
You might also like to view...
Solve.
x2 - x + 
= 0
A. 
, 
B. 
C. 
, 
D. 
, 
Mathematics
Evaluate the expression.
A. 4 B. 1 C. 0 D. 6
Mathematics
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.A ball player batting .300 comes to bat 3 times in a game. The number of hits is counted.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.From a point on a river, two boats are driven in opposite directions, one at 10 miles per hour and the other at 7 miles per hour. In how many hours will they be 34 miles apart?
A. 4 hr B. 3 hr C. 2 hr D. 1 hr
Mathematics