25 +(-4)*2 = 17
A value of 17 is -4 standard deviations from the mean.
Answer:
The new amount is 36
Step-by-step explanation:
we know that
100%+20%=120%
Let
x-----> the new amount
The number 30 represent the 100%
so
by proportion
30/100%=x/120%
x=120*30/100=36
Answer:
1 day 21 hours 40 minutes
Step-by-step explanation:
5 days 6 hours 20 minutes
- 3 days 8 hours 40 minutes
============================
We will need to borrow minutes from the hours because we don't have enough.
1 hour = 60 minutes
6-1 = 5 hours
20 +60 = 80 minutes
5 days 5 hours 80 minutes
- 3 days 8 hours 40 minutes
==========================
We will need to borrow hours from the days because we don't have enough.
1 day = 24 hours
5 -1 =4 days
5 + 24 = 29 hours
4 days 29 hours 80 minutes
- 3 days 8 hours 40 minutes
==========================
1 day 21 hours 40 minutes
