Can you help me with my question please?
Estimate 189 to the nearest tenth which would be 190. And then do the same for 643 which would be 640. 640-190= 450
Answer:
x=4.5
y=-2.5
Step-by-step explanation:
Multiply 2x-4y=19 by 3
Multiply 3x+5y=1 by 2
Solve simultaneously