Melvin small typed 485 business letters. The cost of writing these letters was estimated to be $3,455.25. What was the average cost of a letter to nearest cent?

Question

anonymous · Answer

7.12$

cgreenwade2000 · Answer

Stop just telling people the answer. Guide them toward it.

anonymous · Answer

its not your problem

anonymous · Answer

lol thanks !

anonymous · Answer

but yeah show the steps!

cgreenwade2000 · Answer

But you aren't helping anyone by just giving them the answer. 

In this case, you would explain what operation you would use to solve the problem. Note the key word "average" there that would tell us to divide the total cost by the number of letters.

anonymous · Answer

ok if someone really needs steps why not they mention in their question??

anonymous · Answer

if he wrote 485 letters,

$$T_l=485$$

anonymous · Answer

We are all supposed to help the asker, not just give answers, so cgreenewade is right to point that out.

anonymous · Answer

if we know that the  total cost is 3455.25

$$T_c=3455.25$$

anonymous · Answer

we need to find the cost of each letter. the cost of each letter depends on the amount of letters so lets denote x as the cost of each letter

$$T_c=T_l x$$

anonymous · Answer

$$3455.25=485x$$

anonymous · Answer

divide by 485 and you have your answer

anonymous · Answer

Thanks

anonymous · Answer

ok it became my habit because some of the questions i answered earlier was just to give the right answer so if you guys have problem with this i will stop answering like this