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1 answer:
The following inequality is graphed and attached accordingly:
-22 ≤ x ≤ 24
When two mathematical expressions that aren't equal to each other are brought together into one equation, it is called an inequality.
The inequality signs are:
≠
>
<
These are also referred to as inequality signs:
≤
≥
It is to be noted that zero "0" on the inequality graph is indicative of the fact that the value of x can be zero, greater than zero or less than zero, in which case, it takes on a negative polarity.
Learn more about inequalities at:
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For this case, the first thing we must do is define variables:
p: plane speed
w: wind speed
With the wind in favor, the speed is:
With the wind against the speed is:
Rewriting both equations, we have the following system of equations:
Then, solving the system of equations (graphically for example), we have the solution is:
Therefore, jet stream's speed:
Answer:
A) p + w = 960; p - w = 600; jet stream's speed = 180 km / h
p: plane speed
w: wind speed
With the wind in favor, the speed is:
With the wind against the speed is:
Rewriting both equations, we have the following system of equations:
Then, solving the system of equations (graphically for example), we have the solution is:
Therefore, jet stream's speed:
Answer:
A) p + w = 960; p - w = 600; jet stream's speed = 180 km / h