Question

the formula p= 8n - 30 gives the profit p when a number of items n are each sold at $8 and expenses totaling $30 are subtracted. If the profit is $170.00, how many items were bought?

Answer 1

170=8n-30
Just need to solve for n.
200=8n
25=n

Answer 2

25 items were bought.

Explanation:

Given the formula of profit :

`p = 8n - 30`

Where: n = number of items sell at the price $8 each

If the profit is $170.00, then n items will be:

p = 170.00

`p= 8n - 30`

`170.00=8n-30`

`n=(170.00+30)/(8)=25`

25 items were bought.