Answer is D. Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for th remaining varables
q= 6
r= 7
work--
Multiply 1st column by -2:
-30q+8r=-124
5q+8r=86
Subtract 2nd column from the first column:
-35q= -210
Solve for q:
q=6
Subtract q=6 by any of the two equations, so:
-30q+8r=-124
-30*6+8r=-124
Solve for r:
r=7
Answer:
answer what?
Step-by-step explanation:
Answer:
A=a2=3.42≈11.56
Step-by-step explanation:
i believe
Answer:
It's b. (0,-11)
Step-by-step explanation:
