Solve the system by substitution.x + y = 10x - y = 8
A. No solution
B. (9, 1)
C. (-9, 2)
D. (8, 2)
Answer: B
Mathematics
You might also like to view...
Add or subtract. Assume all variables represent positive real numbers.
- 
A. -5
B. -15
C. -5
D. 9
Mathematics
List the intercepts of the graph. 
A. (-1, 0) B. (0, -1) C. (0, 1) D. (1, 0)
Mathematics
Find the sum.5 + 10 + 15 + ... + 250
A. 6250
B. 6375
C.
D. 6125
Mathematics
Decide whether the problem is an equation or an expression.2(6 - x) + 
A. Equation B. Expression
Mathematics