Answer:
The answers are in the question.
Step-by-step explanation:
The wording can be off-putting but the answers are mostly there for you. It says that when the wind was at the tail of the plane, the travel was hastened to 5 hours instead of six. Is the rate of speed with the wind in favor of the plane is r+21, then it stands to reason that traveling AGAINST the wind will cause the rate to drop to r-21. Taking the average of the two travel times (5 and 6 hours each), we get 5.5 hours. Since speed is distance divided by time, the speed of the plane in still air will be <em>d</em> / 5.5
Be sure to label the speed as mph.
|x＋8|=5
then x+8= 5 or -5
then x= -3 or -13
Umm I don’t really know if this is the answer but 26/the amount of the other flavors
Answer:
r=-11
Step-by-step explanation:
The answer could be 67, 68, or 69.
Hope that helps! c:
