ANSWERS: 3
  • Answer:501 Answer:1005 Answer:1509 Answer:2013 Answer:2517 Answer:3021 Answer:3525 Answer:4029 Answer:4533 Answer:5037 Answer:5541 Answer:6045 Answer:6549 Answer:7053 Answer:7557 Answer:8061 Answer:8565 Answer:9069 Answer:9573 I cheated and wrote a program...
  • a lowest common multipl : 7 x 8 x 9 = 504 7-4= 3 8-5= 3 9-6= 3 504-3=501 504x2=1008 1008-3=1005 504x3=1512 1512-3=1509 504x4=2016 2016-3=2013 . . . 501-------the lowest number 1005 1509 2013 . . I'm not sure the answer is right. Please double check it.
  • What numbers give a remainder of 4 when divided by 7? Answer n = 7a + 4 (for all a) What numbers give a remainder of 5 when divided by 8? Answer n = 8b + 5 (for all b) What numbers satisfy both of those? 7a + 4 = 8b + 5 7a = 8b + 1 7a + 7 = 8b + 8 7(a+1) = 8(b+1) so a+1 must be a multiple of 8. What numbers give a remainder of 6 when divide by 9? Answer n = 9c + 6 (for all c) What numbers satisify the first and third answers? 7a + 4 = 9c + 6 7a + 7 = 9c + 9 7(a+1) = 9(c+1) a+1 must also be a multiple of 9. a+1 must be a multiple of 8*9 = 72. Say 72 d a = 72d -1 And n = 7a + 4 so n = 504d - 3 (for all d)

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