Answer:
1.6 hours for each group
Step-by-step explanation:
8 / 5 = 1.6
1.6 x 5 = 8
you have to share 8 hours equally among 5 groups so its just 8 / 5 and you get 1.6 and thats how many hours each team is going to get
400 is the answer to your question
-x + 1/2 = x + 4 1/2
+x +x
1/2 = 2x + 4 1/2
-4 1/2 - 4 1/2
-4 = 2x
x = -2