Week of November 10 - 14

This week we will continue our lessons over proportions by discussing percent of change and similar figures.  There are two types of percent of change, percent of increase and percent of decrease.  Percent of change is found by dividing the amount of change in the situation by the original number.

Example:  Sam's grade during the 1st six weeks was an 85.  The 2nd six weeks he had a 92.  What was the percent of change from the 1st six weeks to the 2nd six weeks?

percent of change = 92 - 85   =     7    =  0.0823... x 100 = 8.2%
                                   85             85

To convert the number to a percent you multiply it by 100.

Wednesday, we will complete a test review for our first test of the 3rd six weeks and finish the week with a Common Assessment over Proportions and Percents.

Bonus Question for the Week

A real estate agent received a commission of $9375 on the sale of a home. If the commission
represents 7 1/2% of the selling price, how much did the house sell for?

Copy the problem, work it, and turn it in by Friday, November 14th for 10 Bonus points.