If it is exact find a function F(x,y) whose differential, dF(x,y) gives the differential equation. That is, level curves F(x,y)
= C are solutions to the differential equation: dy/dx = (-4x^(4)-3y)/(3x+2y^(4)) First rewrite as M(x,y) dx + N(x,y) dy = 0 where M(x,y)= ?
and N(x,y)= ?
and N(x,y)= ?
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Given:
You and your friend each purchase an equal number n of magazines.
Your magazines cost = $1.50 each
Your friend's magazines cost = $2 each
Total cost = $10.50
To find:
The equation to find number of magazines you purchased.
Solution:
Your magazines cost = $1.50 each
Your friend's magazines cost = $2 each
Number of magazines purchased by you and your friend = n
Total cost =
It is given that total cost is $10.50.
Divide both sides by 3.50.
Therefore, required equation is and the number of magazines purchased by you is 3.