20 minutes = 1/3 of an hour
1/3 = 0.333
1/3 x 45mph = 15, so she drove 15 miles at 45mph
18-15 = 3
3 miles/ 20 mph = 0.15 hours
0.333+0.15 = 0.483 hours total
0.483 x 60 = 28.98 so approximately 29 minutes total driving time
7:15 + 29 minutes is 7:44 am she arrived at work
So 12=total
7=blue
black=total-blue=12-7=5
black=5
1. 2/3 of 12 were taken out or 24/3 were taken out or 8 marbles were taken out
there is not enough info becasue it doesn't specify which ones were taken out
2. there is not enough info
3. not chosen=total-chosen=12-8=4 so 4 were chosen
Answer:
A. -386
Step-by-step explanation:
The approximate residual value for year 4 is that
graph down below:
have joint density
We can find 
by integrating the joint density over the region in 
where 
in the first quadrant, i.e. above the line 
:
using the fact that
Then using the same property,
Answer:
15ft........
Step-by-step explanation:
it is fifteen feet
