1 and 1/2 hours each night
1+1+1+1+1= 5
1/2+1/2+1/2+1/2+1/2= 2.5
5+2.5= 7.5
7.5 hours or & and a half
hope this helps
~L
X = y + 5
-y + x - x = y - y + x + 5
-y = x + 5
y = x - 5
Answer:
320km/h
Step-by-step explanation:
You simply times 80 km by 4hr to get 320 km/h
