Question

You plan to sell cookies for your Math Club. It costs $0.15 each to bake a cookie and $25.00 for packaging materials. The first 48 cookies are samples and will not be sold.

A. Write a function for the average cost of a cookie

B. What is the average cost if 1000 cookies are baked?​

Answer 1

hope this helps.......

Answer 2

see below!

Explanation:

A)
`(.15x + 25 + 48(.15))/(x + 48)` which can be simplified to
`(32.2 + .15x)/(x + 48)` = f(x)

• x in this equation is the cookies because the number of cookies someone wants to make is unknown
• 25 is the total cost of materials used total
• 48(.15) would be the cost of the samples
• f(x) is the answer for when you plug in x

B)

plug in 952 to x because x is the number of cookies left that you need to bake since 48 has been taken out already for the samples

`(32.2 + .15(952))/(952 + 48)` ----->
`(32.2 + 142.8)/(1000)`------>
`(175)/(1000)` ------> $0.175 or 17.5 cents