15/10= 3/2
54/x=3/2
3× what=54
18
18×2= 36 ft the building is 36 ft
-3x(-7) = -3(-2)(-7) ⇒ -42
-42 would be the answer.
Answer: The answer is A. Hope this helps :)
Step-by-step explanation:
Answer:
The answer to the question is
1.5 hours that is;
When the distance between them is more then 135 miles is after 1.5 hours and they will lose radio contact at 3:30 p.m.
Step-by-step explanation:
We note that
The speed of the military convoy headed north =50 mph
The speed of the convoy headed south = 40 mph
Let t be the time taken for the two convoys to be 135 miles apart
The time taken for the two convoys to be 135 miles apart is given by
50×t miles+ 40×t miles= 135 miles
That is 90×t miles = 135 miles
t = 135/90 = 1.5 hrs
Answer:
Step-by-step explanation:
