the answer is 72
let me know if you need an explanation
Answer:
Distance of Tunnel is 500 meters + Train travel rate is 20 meters per second = 25 seconds to pass through the tunnel only therefore the outstanding balance of 35 seconds x 20 meters per second =600 meters Train
Step-by-step explanation:
Total of length of train 600 meters and tunnel (500 meters) is 1,200 meters +30 seconds = TR of 20 meters per second
Did you get the answer me and you need help and no one dont want to help i hope you found the answer because i really need it math is very hard.
9
Step-by-step explanation:
I don't no but 5 and 1 is 6 so add 9 more and you have 15
<h2>
Answer:</h2>
Shown below
<h2>
Step-by-step explanation:</h2>
The first system of inequality is the following:

To find the solution here, let's take one point, say,
and let's taste this point into both inequalities, so:
<h3>FIRST CASE:</h3>
First inequality:

The region is not the one where the point
lies
Second inequality:

The region is the one where the point
lies
So the solution in this first case has been plotted in the first figure. As you can see, there is no any solution there
<h3>SECOND CASE:</h3>
First inequality:

The region is the one where the point
lies
Second inequality:

The region is not the one where the point
lies
So the solution in this first case has been plotted in the second figure. As you can see, there is a solution there.
CONCLUSION: Notice that when reversing the signs on both inequalities the solution in the second case is the part of the plane where the first case didn't find shaded region.