Answer:
pls mark brainiest
The production possibilities frontier (PPF) is curved because the cost of production is not constant. If every trade-off were the same, it would create a straight line. But the direction that PPF is curved comes from the way that the trade-offs change
She bought it at a 15% discount because 15 percent of 40 is 6 and 40-6=34
To solve this problem you must apply the proccedure shown below:
1. You have the folllowing system of equations given in the problem above:
<span>
22x − y = -23 (equation 1)
11x + 12y = 1 (equation 2)
</span>
2. If you multiply the equation 2 by -2, and then sum the equation 1+equation 2, you obtain:
-25y=-25
y=1
3. Then, you must substitute y=1 into the equation 1, then you have:
x=-1
4. As you can see, when you solve it, the solutions are:
x=-1
y=1
Answer:
There are total 30 books in the 5 feet high stack of books.
Step-by-step explanation:
The complete question is
Given, Each note book is 2 inches thick, How many notebooks do you think it would take to make a stack that is 5 feet high
Solution
Thickness of each book
The total height of the book stack is feet.
The number of books in the stack is equal to total height of the stack divided by the thickness of one book
Number of books in five feet high stack is
Hence, there are total 30 books in the 5 feet high stack of books.