Solve the given differential equation by separation of variables. (ey + 1)2e−y dx + (ex + 1)5e−x dy = 0

Step-by-step explanation:

We are given that differential equation

Taking integration on both sides

Using identity:

Substitute

Differentiate w.r.t x

Substitute

Differentiate w.r.t y

Substitute the values then we get

Using identity:

By using formula :

Substitute the values then we get

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

35-60 students are taking math.