Answer: b)
Step-by-step explanation:
Given,
speed of train A travelling east = 55 mph
speed of train B travelling west = 70 mph
time train A travelled while train B was at rest = 45 min or
so, Distance travelled by train A while train B was at rest =
=
Now, after 'T' hour both the train will travel;
train A = 55T
train B = 70T
hence, the distance (D) between two train in miles will be;
⇒ D = 41.25 + 55T + 70T
⇒ D = 125T + 41.25
Answer:
34 and 19.
Step-by-step explanation:
Since the sum of the two numbers is 53, x+y=53. Since the difference is 15, x-y=15.
Adding x+y=53
and x-y=15,
The ys cancel, leaving 2x=68, or x=34. Therefore, 34-y=15, or y=19.
Answer:
x < 3 /14
Step-by-step-explanation :
When dividing two negative numbers , the sigh changes (flips)
Answer:
I got -11/15
Step-by-step explanation:
I did 3 (1)/(2)*(2)/(5)-5 (1)/(3)*(2)/(5)