Setting up a system of equations is usually effective when
solving money word problems and word problems involving coins. A
knowledge of how to solve systems of equations is necessary to
solve these types of equations. Other types of word problems
using systems of equations include mixture problems, rate word
problems, work word problems and age word problems. In the
United States coins are everywhere, pretty much every home you
walk into is going to have like a change drawer or jar or a bowl
where people toss their coins at the end of the day. So you guys
have a lot of familiarity with working with quarters, nickels
and dimes and adding up 25 cents, 10 cents, 5 cents adding up
those kinds of denominations. So in the word problems you're
going to see, you're going to be given information about the
amounts of coins there are and also the values. You're going to
want to turn that in 2 equations. For some people it helps them
to make a table like this. I'm going to show you how you might
do it, let's juts say yo