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mdm12Section4_P_OddSolutionsFinal

mdm12Section4_P_OddSolutionsFinal - Q1-3 Q7 Q5 CHAPTER 4...

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Q1-3 Q5 Q7 CHAPTER 4 Review of Prerequisite Skills, p. 224 Solutions to Odd Number Problems 1. 3. a) 1 + 3 + 6 + 10 + 15 + 21 + 28 = 84 1 + 3 + 6 + 10 + 15 + 21 + 28 + 36 = 120 Therefore, the clerk can make a pyramid that is seven layers tall using 84 of the 100 cans. b) There are 28 cans in the base level. c) The total number of cans in the full pyramid in part a) is 84. d) 1, 3, 6, 10, 15, 21, 28, ..., ( 1) 2 n n + Top

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5. a) 8 ( 2)( 2)( 2) 8 ( 2)( 2) = ( -3)( 3)( 2) ( -3)( 3) 8(4)(7)(6) (2)(7) 96 y x y z y x y x y z x y + + + + + + + + = = b) 3 2 2 3 2 2 2 ( 2) ( 2) ( 1) (5 2) (4 2) (3 1) ( 1)( 1) 4(5 1)(4 1) 15 552 216 72 x y z y x y + + + + = + + = = 2 c) 2 2 4 4 ( 4)( 2)( 3) ( 1) ( 1) (5 4)(4 2)(3 3) (5 1) (3 1)(4) ( 1)( 3)
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mdm12Section4_P_OddSolutionsFinal - Q1-3 Q7 Q5 CHAPTER 4...

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