mat116
posted by Anonymous .
Can you please look over these and let me know if they are right?
1/4(5x-1/2)-5/3<1/3 I got {x|x<51/30}
31-(2x+2)< or equal to 4(x+1)+x I got {x|x>equal to 3.6}
Use elimination method: 4x+5y=-12 and 7x-5y=-76 I got x=-8 and y=4
elimination: 0.3x-0.2y=4 and 0.4x+0.5y=1 I got the solution of (220/23,-130/23)