I think the answer should be 12.
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
Hello,
T=F*x==>x=T/F=96/16=6 (m)
T is the word (travail in french)
F is the force applied
x is the deplacement.
There were about 500 to 600 students that attended the University of salamanca by the end of the 14th century
