Answer:
12-5=7
12-7=5
Step-by-step explanation:
Given:
A train travels 288 km at a uniform speed.
If the speed has been 4 km per hour more it would have taken one hour less for the same journey.
To find:
The initial speed of the train.
Solution:
Let x km/h be the initial speed on the train.
New speed of train = (x+4) km/h
We know that,

Time taken by the train initially to cover 288 km is
hours.
New time taken by the train to cover 288 km is
hours.
It is given that If the speed has been 4 km per hour more it would have taken one hour less for the same journey.





Splitting the middle term, we get




We know that the speed cannot be negative. So, the only possible value of x is 32.
Therefore, the speed of the train is 32 km/h.
Answer:
4 hours and 10 min
Step-by-step explanation:
For this equation we will do ratios:

250 min =
4 hours and 10 min
4(60) = 240
240 + 10 = 250 minutes
Answer:
3/5
Step-by-step explanation:
to see whether the number complete the inequality or not multiple denominator first with 3 you will see it's bigger than 2/3 then with 9 and it is smaller than 7/9.