Question

value mart is advertising a back to school sale on notebook a pack of 8 notebooks sells for 7.15 where as a 6 pack of the same brand of note books cost 5.25 wich is the better buy

Answer 1

6 notebooks for 5.25 is a BETTER BUY.

Explanation:

Here, according to the question:

A) 8 notebooks sells for 7.15

`\textrm{Cost of 1 notebook} = \frac{\textrm{Cost of n notebooks}}{\textrm{n}}`

So, here cost of 1 notebook =
`((7.15)/(8) ) = 0.893`

⇒Here the cost of 1 notebook = $0.893

B) 6 notebooks sells for 5.25

`\textrm{Cost of 1 notebook} = \frac{\textrm{Cost of n notebooks}}{\textrm{n}}`

So, here cost of 1 notebook =
`((5.25)/(6) ) = 0.875`

⇒Here the cost of 1 notebook = $0.875

Now, as we can see $0.893 > $0.875

⇒ the cost of 1 notebook is MORE if we buy 8 notebooks sells for 7.15.

Hence, 6 notebooks for 5.25 is a BETTER BUY.