Answer:
A. It takes the robot 3/20 hour to complete one task
B. The robot can complete 6 2/3 task in on hour
Step-by-step explanation:
Tomorrow night at ten because 48 hours is two days. So two days from last night at ten.
Answer:
1)
.
2)
3)
4)
5)
6)
7)
8)
Step-by-step explanation:
In the given number lines, rightarrows represent positive integers and leftarrows represent negative integers.
1)
In first number line we have two rightarrows.
Rightarrow from 0-4 = 4
Rightarrow from 4-9 = 5
So, required sum is
.
Similarly,
2)
3)
4)
5)
6)
7)
8)
B. 7.2
Step-by-step explanation:
-15.5+7.2=(-8.7) and vice versa.