## Using Ratio to Determine Proportion of Cookies

Ratio and proportion is a skill that is used all the time… even though we may not realize it. It is an important GED math concept to know and practice.

Bring in cookies and talk about how ratio and concept is used in our everyday life. It is used when we plan a party, when we determine how much gas we can put in our car, or how much paint will be needed when painting our home.

Ratio is when you are comparing two numbers and there are three ways it can be written. 3 to 2, 3/2, or 3:2

Remember to write the ratio in the order given in the order given in the problem.

ratio and proportion

## Using Simple Interest to Determine Total Cost of Land

As defined by Merriam Webster, simple interest is the interest paid on the original principal only of a loan or on the amount of an account.

It is the fee that a person pays for the use of someone else’s money. This type of interest is called simple interest and there is a simple formula for finding it.

simple interest = principle x rate x time

This is an important GED math concept to understand and practice.  Be sure to always change the percent to a decimal before multiplying (i.e. 6% = .06).  Also remember that time is based on years. So, if the time is 2 years you multiply by 2, but if the time is 6 months you multiply by 6/12 or 0.5 because it is a half a year.

Simple Interest