Question

The question

Answer 1

what

Answer 2

http://assets.openstudy.com/updates/attachments/56c1bccee4b0d0b671564479-mathmath333-1455537447316-cap553ture.png

Answer 3

spam?

Answer 4

but can u help on my question?

Answer 5

i will try

Answer 6

45/54 for each bus stop

Answer 7

and so per hour
45/54*(1hr)
that should be the answer

Answer 8

i will ask @phi
he is online

Answer 9

yes, 45/54 or 5/6 of an hour is how long it drives. that leaves 1/6 hr (10 mins) when it is stopped.

You can think of it a few ways.


One way is to say, if it drives for 1 hour, it will go 54 km (use rate * time = distance)
but it only went 45 km, so it did not drive for 1 hour:
54*t= 45
t= 45/54= 5/6

Answer 10

another way to think of it:
let t be a fraction of an hour when it is driving
and (1-t) the fraction it is not driving (going 0 kph)
then the distance it goes in 1 hour is
54*t + 0*(t-1) = 45
(same equation, but we are "averaging" the speeds 54 and 0 )

Answer 11

ok thnks

Answer 12

btw, the answer is 1/6 hour not 5/6, because they are asking how long it is stopped per hour

Answer 13

yea 10 min is given i read it