Using Units to Solve Problems

metric system. well you'll run into problems all the

time where you have to convert from one unit to another when dealing with

distances or lengths or weights. you name it. by metric system think like kilograms

instead of pounds and meters instead of yards. well the good news is that you

don't have to have all those conversions memorized. your brain has enough stuff to

worry about. all you really have to do is refer to a conversion chart. where

someone's already done the dirty work for you, [kid with messy face holds conversion chart]

and shmoop has one and it looks a little something like this- though all right say

you want to know how many miles some guy walked and another guy shoes. but you're

told that he only traveled 9.65 six kilometers well we can look up miles to

kilometers on our handy dandy chart, or a chair and we see that one mile equals

about one point six oh nine kilometers. all right then we'll you can take nine

point six five six right there plug that into our calculator and divide by one [equation]

point six oh nine to get just about six miles exactly. see how cleverly you could

give that problem there for you no extra charge. okay so from there with

you whatever else particularly problem asks of us whether it's asking for a

rate or time or whatever. so chew on that while you're chewing on your little Big

Mac. [man gets McDonald's meal]