Answer:
3. -2x+y=-9
4. -1/2x+y=8
5. -3/4x+y=0
Step-by-step explanation:
To solve this you just need to get both variables on one side.
Hope this helps!
1) 10.0 + 5.0 + .8
2) 1.000 + 0.050 + 0.008
3) 0.000 + 0.100 + 0.050 + 0.008
I believe the answer is 7.5
155;
rounding to the nearest whole number basically means rounding the decimals so they disappear e.g. 11.5 would round up to 12 because 5+ rounds upwards and below 4 rounds down so say it was 15.34 it would round down so it would be 15.
I hope this helps ;)