Answer:
He's correct.
Step-by-step explanation:
As long as there is no change in sign of the variables.
W is equal to 19/4 or 4.75
Hope this helps! :)
10.25 hours on average
8+12+12+9=41
41/4= 10.25
Okay you have 2 sum unknow lets call them X+Y
so X+Y=33, 4X=108
Get X by it self then plug it in 4X=108
X=-Y+33
4(-y+33)= 108
-4y+132=108 Then subtract the 132
-4y=-24 Y=6 then to find X subtract 33-6=27
Y=6 X=27 if you check it works out
