Question

Write an expression to find the total cost of buying b paperback books and m magazines if magazines cost $4.95 each and paperback books cost $7.95 each.

Answer 1

`Total\ cost=7.95b+4.95m`

Explanation:

Paperback Books:

Number of books
`=b`

Cost of 1 book
`=\$7.95`

`Cost\ of\ all\ paperback\ books=cost\ of\ 1\ book* number\ of\ books\\\\Cost\ of\ all\ paperback\ book=7.95* b=7.95b`

Magazines:

Number of magazines
`=m`

Cost of 1 magazine=
`\$4.95`

`Cost\ of\ all\ magazine=cost\ of\ 1\ magazine* number\ of\ magazine\\\\Cost\ of\ all\ magazines=4.95* m=4.95m`

`Total\ Cost=Cost\ of\ paperback\ books+Cost\ of\ magazine\\Total\ Cost=7.95b+4.95m`