chpoint 9 due 9-15

# chpoint 9 due 9-15 - left side |-8| |3| = 8 3 = 11 right...

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Name: __Cynthia Collins ________________________________ Date: __________________9-15-10________________ Week :__________8________________________ Checkpoint: _____9________________________ Page # Prob. # Problem and Solution: Comments (Grading) Section 9.1 (pg. 671) #16 Convert to a common denominator (14): 6/14, -12/14, 2/14, -7/14, 4/14 Now order them by numerator: -12/14, -7/14, 2/14, 4/14, 6/14 And put them back in their original form: -6/7, -1/2, 1/7, 2/7, 3/7 Section 9.1 (pg. 672) #32 |4| + |-3| = 4 + 3 = 7 Section 9.1 (pg. 672) #44 |-9| - |-4| 9 - 4 = 5 Section 9.2 (pg. 683) #40 7 – 9 – 5 + 6 -2 – 5 + 6 -7 + 6 = -1 Section 9.2 (pg. 683) #48 1/3 – 5/6 – ½ 2/6 – 5/6 – 3/6 -3/6 – 3/6 -6/6 = -1 Section 9.2 (pg. 683) #58 Do the inside: |-13| Evaluate: = 13 Section 9.2 (pg. 684) #66 Check the value of each side:

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Unformatted text preview: left side: |-8| + |3| = 8 + 3 = 11 right side: |-8 + 3| = |-5| = 5 FALSE Section #72 + 625 - 68.74 - 29.95 - 57.65 9.2 (pg. 684) 556.26 - 29.95 - 57.65 526.31 – 57.65 = \$468.66 increase Section 9.3 (pg. 689) #44-1/2 - (-5/8) Common denominator:-4/8 + 5/8 = 1/8 Section 9.3 (pg. 689) #48-3.4-(-7.6)-3.4 + 7.6 = 4.2 Section 9.3 #54 (pg. 689) #54 The range = high - low 119 - (-54) 119 + 54 = 173 degrees Section 9.4 (pg. 700) #70 18 – 8 = 10 Section 9.4 (pg. 700) #80-27 – (16) = -43 Section 9.4 (pg. 701) #82 36 – 16 = 20 Section 9.4 (pg. 701) #88-81 – (36) = -117 Section 9.5 (pg. 708) #32-45/-3 45/3 = 15 Section 9.5 (pg. 709) #58-8*-4 / (8+4) 32/12 16/6 = 8/3 Section #60 (4+3+1)/(2-(-1)) 9.5(pg. 709) (7+1)/3 = 8/4...
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chpoint 9 due 9-15 - left side |-8| |3| = 8 3 = 11 right...

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