What does x equal in 3x - 1 < 2x +4
1 answer:
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Answer:
She has 27 students now.
Step-by-step explanation:
Given :
The teacher has 30 students
10% students left.
To find : how much students does she have now?
Solution :
Since we are given that teacher has 30 students .
And 10% of students left
⇒ 10% of 30
⇒
⇒
⇒
Thus, 3 students left .
She had 30 students . three students left.
So, now she have 30 - 3 = 27 students .
Hence she has 27 students now.
If you're just focusing on the boundary, it's the circle . Parameterize it by taking
and
, with
. Then
reduces to a univariate function
:
Then you can find any extrema on the boundary by checking the critical points of .