He may be wrong. If he was wrong, this is the example.
0 < -10x
If we were to divide both sides by -10, even though the answer would be undefined or just end up as zero, it is just a common rule to always flip the sign whenever you divide or multiply by a negative.
Don't quote me on it, but I think I'm right.
Hope this helped!
There’s a few chances depending on how many cards
Answer:
21 seconds
Step-by-step explanation:
Let us assume each story is 3.5 meters. If the building is 12 stories tall, then the elevator needs to travel 3.5*12=42 meters. Using the formula Distance = Speed * time, we get 42 = 2 *t, so t = 21 seconds.
I think the answer is more than