Class Work:Class Work:Reciprocals: 1-9Reciprocals: 1-9

Odd/Even Both PagesOdd/Even Both Pages

Thursday, September 27, 2012

Notes:

Notes:

** If I had 5 minutes to solve an algebra problem, I'd spend the first 3 minutes analyzing it.

1. Write the opposite and reciprocal of -2/52. The fractions 4/7 & 32/50 are between what two whole numbers?3. 4 students walk into a class, 3 are girls. Then, 8 students come in. Out of these 8, how many would you expect to be girls?

4. Find two consecutive odd integers whose sum is 176.

5. A 45 ft. rope is cut into three pieces. The second piece is 5 ft. longer than the first and the third piece is twice as long as the first. How long is each piece?

1. 78 = 10x + 3 2. -15 - 4x = 9 + 8x 3. (3 + 7b) 2a

4. 2x - 5 + x - 7 = 8 - 5x + 4 5. 3(2x + 5) = 3(x - 2)

Your goal with these types of problems is to get rid of the fraction. You do this by multiplying each term by the number which removes the denominator of the fraction.

1. ¾(x + 3) = 9 How many terms are there?

4{3/4(x + 3)} = 9 x 4 = 3(x + 3) = 36;

3x + 9 = 36; 3x = 27; x = 9

2. Solve: 3/2x + ½(x - 4) = 6

3. -1/8x + 7 = 16 4. 5/2x - 1 = -31

5. 5 + m = 1 6. y/-6 = 12

3

Simplifying Expressions with Fractions

1. -1/4(-8 + 2x) 2. 4/3(6x + 12)

And Finally,

1. -1 - 2 - 3 • 4 - 5 =

Class Work:Class Work:

Reciprocals: 2-8Reciprocals: 2-8 Odd/Even Both PagesOdd/Even Both Pages