Mrs. Hidalgo paid $30 for 4 students to visit an art museum. Find the cost for 20 students.
1 answer:
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Answer:
a. 40
Step-by-step explanation:
Given
and
We plug in 2x into .
We now substitute x=-3.
The correct choice is A.
Answer:
No, She did not use the distributive property correctly.
Step-by-step explanation:
While multiplying , he did not use distributive property correctly. She only multiplied 3 with
and not with 2. Also she multiplied
only with 2 and not with
.
Answer: The required solution of the given IVP is
Step-by-step explanation: We are given to find the solution of the following initial value problem :
Let be an auxiliary solution of the given differential equation.
Then, we have
Substituting these values in the given differential equation, we have
So, the general solution of the given equation is
where A and B are constants.
This gives, after differentiating with respect to x that
The given conditions implies that
and
Adding equations (i) and (ii), we get
From equation (i), we get
Substituting the values of A and B in the general solution, we get
Thus, the required solution of the given IVP is