Marco has a collection of 38 state quarters. If 3/5 of his quarters are dated 2005, what is the approximate value of the quarters from 2005?

First, find the number of quarters that are dated 2005 by multiplying 38 * (3/5)

You get 22.8, so you round that to the nearest whole number (23)

Then, since each quarter is worth ($.25) you multiply the number of coins by the worth.

23*.25=$5.75