AmandaSponge

Amanda Bassett

Sponge

9/17/08 The difference is that a whole number is a whole number is a non-fraction/non decimal and an integer is a - or + whole number!

9/23/08 Pg 83 (65-68)

4.78d + 0d =                             4.75d -21P -76p^2-9+P=             -  20p-76p^2-9 3.3t^2 + 8.7t-9.4t^2 =           12.7t +13.7 1.5m-4.2m-12.5v +4.2m=    1.5m-12.5v

9/24/08 pg 85 1-3, 5-10)

1. (-1/3) + (2/9) = -1/9 2. -3 +(- 17)= - 20 3. -5 +(-5) +5= -5 5. 2a x ( -3b)= 2 x 4 x (-3 x -5) =120 6 . -b - 4  = -5 -4 = 1 7. (2a^2) ÷ (4b) = (2 x 4 ^2) ÷ (4 x -5)=  -1.6 8 . - 5 +18=13       t = 18 9. 1/3 (24x - 36)= 8x- 12 10. 6t + 43t= 49t

9/25/08 1. -(y-4) and 4-y they equal the same. 2. 8+5m and 8+5+m no 3. 2( t- 7) and 7(t-2) no 4. 4(2b -3) and 2[(2-1)b-2] - no

0ct. 1 . 15-18

15 14k²-(-2k²)= 16k² 16. 4xy+9xy=13xy 17. 6t+2-4t= 2t+2 18. 9x-4+3x=12x-4 15/7 +-3/6=  90/42 + -21/42= 69/42= 23/14=1 27/42

9/26/2008 The associative- associative is  when you can have the parenthesis around  ether side and it will still be the same side. and commutative is when you add or multiply ether way and it will still be the same.

October 2. 1. x-5=14      x= 19 2. x+3.8=9    x=5.2 3. -7+x=7     x= 14 4. x-13=20    x=33 5. x/4=8         x=32 6. 9=3x           x = 3 7. 10x =2        x =  1/5 8. 2/3x=-6    x = -9 9.x+2 3/4= 6 1/2       x= 3 3/4

October 3. 40- 43

40. 8+c/-4 = -6 -8                -8 c/-14=2
 * -4    *-4     c = 50

41. 7-3k=-14 -7      = - 7 3k= -7 /3      / 3   k =  7

42.14=6-2p -6     -6 2p= 8 /-2     /-2    p = -4

43. -y/2 +14 =-1 -14   -14

-y/2= 14 y=30
 * 2         *2

october 6. Pg 134 (5-8) pg 129 #29

134 5. 4x +3=-5 - 3   -3                             4 * -2 +3 = -5      4x= -8                                     -5 = -5 ÷ 4    ÷4   x= -2

6. -x + 7= 12 -7    -7                 5 +7 = 12       -x = 5 ÷ -1   ÷-1      x= -5

7.  2t - 8t+1 = 43 -6 t +1 = 43                          -6 *-7 +1 = 43 -1      -1                                43 =43          -6t = 42 ÷-6  ÷ -6              t = -7

8.   0= -7n + 4n-5n = 0 = -12n + 4 -4                     -4        -4 = 12 n      ÷12    ÷12 n = 1/3

129  29            15( 1/5 + 3w/ 15 = 4/5) 3+3w = 12 -3            -3                3w = 9 ÷ 3      ÷3            w= 3