First you move -15 over which makes it 7b=5b+12
then you move 5b over so then its 2b=12
divide b=6
Answer:Are there any options?
Step-by-step explanation:
Answer:
Given speed of trolley = 125 meters per minute

Now we know that
Distance= Speed x time
Thus for the first case since the time of travel is less than 450 seconds thus the distance traveled is less than
Distance < 2.083 x 450 =937.5 meters
hence depending on the given information we cannot come to any conclusion weather the distance travelled is less than 800 m or greater than 800 m.
For the second case
since the time of travel is greater than 400 seconds
Thus the distance traveled is

which is greater than 800 meters.
The average change in temperature is +5 degrees every 1 hour.
Upper quartile would be 4.5. The interquartile range could be 6.