CH. 5 CR Pp 178 -179

1, 5, 9

100

1.   x + 4 ≥ 10;  x = 7.  T or F

True.   7 + 4 ≥ 10

300

5.  2a + 6 = 3a - 1;  a = 5.  T or F

F,  2(5) + 6 ≠ 3(5) - 1.

500

9.  Graph 4, 8, 3, -2, 0, 1, 5 on a Number Line

Dots at EACH Number, with equal spacing ....

13, 17, 21

100

13.    2/3 =___  and 1/6 = ____

2/3 = 4/6 & 1/6 = 1/6

300

17.  5/6 = __  &  -7/8 = __

  5/6 = 20/24  &  -7/8 = -21/24

400

19.  -35.7 + ( - 42.81 ) = ________

-35.7 + ( - 42.8 ) = - 78.51

500

21.  -14.4 ÷  0.12 =

21.    -14.4 ÷  0.12 =  -120

25, 29, 33

100

25.     0.75 = ___

 0.75 =  3/4

300

29.   6.88 = 

6 22/25

400

BONUS.  99.444.... =

99.444.... =  99  44/99  =  99  4/9

500

33.  99.44 =

 99.44  =  99 11/25

37, 41, 45, 49

100

37.  Round. 5.6568 to nearest thousandths

5.657

300

41.  Solve and Graph.    x + 5 = 17

x = 12.  Dot at 12.

400

45.  Solve And Graph.  12 - 8x ≥ 10

x ≤ 1/4.  CLOSED DOT at 1/4 and arrow to the left.

500

49. Solve.  -2x + 16 = 4x - 12

x = 4 2/3

"Problems"

100

1P.  Batteries 2 for 99¢.  How much for 6 ?

$2.97

200

3P.  1/5 of the  1.1 million readers is ?

220,000 or .22 million readers

300

5P.  Earns $378.50 weekly.  Gets 4/5 of her $50 raise.  Take home pay ?

$418.50

400

7P.   Annual payments are: $6430.56 and $1446.00.   What is the combined monthly payment ?

$656.38

500

9P.  Let e = inquiries in electronics.  h + e = 250.    2/3e +e = 250.   e = 150 inquires.  How many inquiries about health care ?

100 inquiries about health care.