Answer:
<em>The train must travel at 50 km/hr to make it on time.</em>
<em></em>
Step-by-step explanation:
distance to be covered = 55 km
time to cover this distance = 1 hr 20 min
1 hr 20 min = 1.33 hrs (20 min = 20/60 hrs = 0.33 hrs)
The train travels the first 30 km distance at a speed of 36 km/hr
and we know that time taken = distance/speed
therefore the time taken to run this 30 km will be
time = 30/36 = 0.83 hr
The train still has 55 - 30 = 25 km to cover,
and the time left is 1.33 - 0.83 = 0.5 hrs left
to make it on time, the train must travel at
speed = distance/time = 25/0.5 = <em>50 km/hr</em>
Answer:
Step-by-step explanation:
→ 
→ 
[ add the x inside the bracket ]
→ 
[ remove the bracket ]
→ 
[ final answer ]
Answer:
-4x-31
Step-by-step explanation:
1) Distribute:
(-13x-15)+(9x-16)
2) Eliminate parenthesis that are not useful:
-13x-15+9x-16
3) Subtract the numbers:
-13x-31+9x
4) Combine like terms:
-4x-31
Hope this helped!
Answer:
Option (6)
Step-by-step explanation:
Name f the planes of the figure given,
Plane JKL or plane Z
Plane PSR
Plane PQK
Plane SRL
Plane PSM
Plane QRL
Therefore, the number of planes of the box standing vertical on a table are 6.
Option (6) will be the answer.
Answer:
3 units right, 4 down = (x+3, y-4)
3 units left, 4 up = (x-3, y+4)
4 units right, 3 down = (x+4, y-3)
Step-by-step explanation:
