Ten granola bars and 12 bottles of water cost $23. five granola bars and four bottles of water cost $10. how much do one granola bar and one bottle of water cost?

The cost of one granola bar is

The cost of one bottle of water is

Step-by-step explanation:

Let

x------> the cost of one granola bar

y-----> the cost of one bottle of water

we know that

-----> equation A

-----> equation B  

using a graphing tool

Solve the system of equations

Remember that

The solution of the system of equations is equal to the intersection point both graphs

The intersection point is

see the attached figure

therefore

The cost of one granola bar is

The cost of one bottle of water is

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

the answer is simply just 6n add the two together as they have an n