Answer:
4
Step-by-step explanation:
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40
400+40+200+400 +200 +10+400×2+10
Using the relation between velocity, distance and time, it is found that the commute took 48 minutes.
Velocity is distance divided by time, that is:
For Lena, we have that d = 29, v = 36, hence the time in hours is given by:
In minutes, the time is given by:
tM = 0.8056 x 60 = 48.
More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569
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its 20 inches
Beatrice's age is 34
Beatruce = B
Andrew = B+2
Chris= B-3
B+(B+2) +(B-3 )= 67-B
3B-1 = 67-B
2B -1 = 67
2B= 68
B = 34
Beatrice is 34
Andrew is 36 (34+2)
Chris is 31 (34-3)
36+31 = 67