Question

Annamarie bought a notebook for $1.13 and pencils for $.39 each. The total cost was $3.92. How many pencils did she buy?

Answer 1

This translates to `1.13+.39xxP=3.92`
(`P=`number of pencils)

Explanation:

Or if we do this in cents:
`113+39P=392`

Subtract `113` from both sides:
`39P=392-113=279`

Now divide both sides by `39`:
`P=279//39=7.15...`

This is not a whole number, so there's something wrong with the amounts.
The closest (7 pencils) would be:
`113+39xx7=386`