SOLUTION: Solve. Use the method of successive approximations. {y=11x+32 {y=-9x+13 ----------- ----------- --- (Multiple Choice Answers:) ----------- ----------- --- A. (-0.95,21.55) B

Algebra ->  Test  -> Lessons -> SOLUTION: Solve. Use the method of successive approximations. {y=11x+32 {y=-9x+13 ----------- ----------- --- (Multiple Choice Answers:) ----------- ----------- --- A. (-0.95,21.55) B      Log On


   

Question 918442: Solve. Use the method of successive approximations.
{y=11x+32
{y=-9x+13
---------------------------
(Multiple Choice Answers:)
---------------------------
A. (-0.95,21.55)
B. (-1,21)
C. (-0.91,21.99)
D. (-0.9,22.1)
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

y=11x%2B32.....eq.1
y=-9x%2B13........eq.2
_____________________subtract eq.2 from eq.1
y-y=11x%2B32-%28-9x%2B13%29
0=11x%2B32%2B9x-13...........solve for x
-32%2B13=20x
-19=20x
-19%2F20=x
-0.95=x
y=11x%2B32.....eq.1...substitute -0.95=x and solve for y
y=11%28-0.95%29%2B32
y=-10.45%2B32
y=21.55
so, ordered pair is (-0.95,21.55)
A. (-0.95,21.55)