9.22 Monday – Week 4 You will ALL have to keep up with textbook READING / REVIEWING.. Lessons Patel covered in class Upcoming lessons Your notes Online PowerPoints

Monday’s Homework Notes on this section follows the homework Work on problems # 16 – 40 evens Word problems – extra credit

40) One half of a number increased by 16 is four less than two thirds of the number. Find the number.

You can use a graphing calculator to solve equations that are rewritten as expressions that equal zero.

Some equations with the variable on each side may have no solution. That is, there is no value of the variable that will result in a true equation.

An equation that is true for every value of the variable is called an identity.

Stations from Friday

#1

#2

#3 a) b)

#4

A firefighter spraying water on a fire stood on the middle rung of a ladder. The smoke lessened, so she moved up 3 rungs. It got too hot, so she backed down 5 rungs. Later, she went up 7 rungs and stayed until the fire was out. Then, she climbed the remaining 4 rungs and went into the building. How many rungs does the ladder have? #5

Hugo withdrew some money from his bank account. He spent one third of the money for gasoline. Then he spent half of what was left for a haircut. He bought lunch for $6.55. When he got home, he had $13.45 left. How much did he withdraw from the bank? #6

#7 a) b)

#8

Trever Goetz is a salesperson who is paid a monthly salary of $500 plus a 2% commission on sales. How much must Mr. Goetz sell to earn $2000 this month? SALES #9

a) b) #10