Answer:
78.1777777778
Step-by-step explanation:
5 is not correct, as well as 87, and 74 r 4. so the 3rd answer is correct.
Using a system of equations, it is found that:
- Each individual notebook costs $2.75.
- A package of pencils costs $1.25.
- Each individual marker costs $0.5.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
- n is the price of a notebook.
- p is the price of a package of pencils.
- m is the price of marker.
From Stan's purchases, we have that:
From Jan's purchases, we have that:
From Fran's purchases, we have that:
From the third equation:
Replacing on the first:
On the second equation, we have that:
Finally:
Then:
- Each individual notebook costs $2.75.
- A package of pencils costs $1.25.
- Each individual marker costs $0.5.
To learn more about system of equations, you can take a look at brainly.com/question/24342899
Given:
Point B is the center of the base.
Each side of the base = 10 cm
To find:
The height of the pyramid.
Solution:
It is given that the measure of each side of the base is 10 cm. It means the base is square. The length of the diagonal of a square is:
Where, a is the side length of the square.
Putting in the above formula, we get
It is given that point B is the center of the base. It means point B bisect each diagonal of a base. So,
In a right angle triangle,
In triangle ABC,
Round the value to the nearest integer.
The height of the pyramid is about 7 cm. Therefore, the correct option is A.
Answer:
y = -4
The graph would look like a straight line going across the graph, crossing -4 on the y-axis.