Jenna bought 4 notebooks and 3 folders for 9.85. The folders cost 1.15 less then the notebooks how much is the cost of a notebook

Question

The folder Costs 1.15 less than the notebooks

Answer 1

Let n = notebook price and f = folder price. Here's what we know:

4n + 3f = 9.85 (the total cost of everything is $9.85)

f = n - 1.15 (the folders cost $1.15 than the notebooks)

 

We have a variable value, so plug it in:

4n + 3(n - 1.15) = 9.85

Distribute:

4n + 3n - 3.45 = 9.85

Simplify:

7n - 3.45 = 9.85

Add 3.45:

7n = 13.3

Divide by 7:

n = 1.9

 

You should be able to find the folder price and check your work from here.