Answer:
360 mi/h
Step-by-step explanation:
The speed for the outbound trip was ...
speed = distance/time = (715 mi)/(2 1/6 h) = 330 mi/h
The inbound speed was ...
(715 mi)/(1 5/6 h) = 390 mi/h
The airspeed of the plane is the average of these two ground speeds, so is ...
(330 +390)/2 = 360 . . . . mi/h
Im assuming you mean 20pence? if so its 5 twenty pence in a pound so times 5 by 9 gives you 45
so there are 45 twenty pence in £9
Answer:
-1
-Step-by-step explanation:
Answer:
11.736
Step-by-step explanation:
You take 82.80 divided by 12 = 6.9 then take 9 divided by 6.9 = 1.304 repeating then times by three =3.912 then times by 9 = 35.208 then divide by 3 = 11.736