The table shows how the time it takes a train to
travel between two cities depends on its average
speed
Which rational function models the time, y, in
hours, that it takes the train to travel between the
two cities at an average speed of x miles per
hour?
DONIM
Average Speed,
(mph)
32
Time,
(hr)
5
40
4
50
32
64
25

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

if x decreases by 4 then y increases by 10

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles