Which is the approximate solution for the system of equations 8x - 10y = -23 and 9x + 10y =-16

The approximate solution is: x = -2.29; y = 0.46

Step-by-step explanation:

8x - 10y = -23

9x + 10y =-16

Since you have -10y in one equation and 10y in the other equation, add the equations to eliminate y and solve for x.

17x = -39

x = -39/17

Now substitute -39/17 for x in the first equation, and solve for y.

8(-39/17) - 10y = -23

-312/17 - 10y = -391/17

-10y = -79/17

y = 79/170

The exact solution is x = -39/17; y = 79/170

The approximate solution is: x = -2.29; y = 0.46

step-by-step explanation:

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

m = (y2-y1)/ (x2-x1)

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

m = (y2-y1)/ (x2-x1)

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew