Tracy Bignel Math wk2 d4 - Tracy Bignell 2.1 pages 122-123...

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Tracy Bignell 2.1 pages 122-123 10. List the factors of 66. A. 2,3,6,11,22,33 2x33=66, 3x22=66, 6x11=66 14. List the composite numbers 0,1,15,19,23,31,49,55,59,87,91,97,97,103,105 A. 15,49,55,87,91,105. 16. List the prime numbers between 55-75 A. 59,61,67,71,71,73, 22. Social science. Dr. Mento has a class of 80 students. For a group project, she wants to divide the students into groups of 6, 8, or 10. Is this possible? Explain your answer. The students can be separated into groups of 8, or 10, but not 6.if the students are divided into groups of 6 there will be 13 groups of 6 and one group of two. The teacher can either have 8 groups of 10 or 10 groups of 8. 13r2 10 8 6÷80 8÷80 10÷80 6 8 80 11 00 00 20 0 18 0 r2 2.2 pages 131-132 20. Find the prime factorization of 330 330=33 x 10 11x3x2x5=330 24. Find two factors of 28 with a sum of 11. 4,7 28=14x2 28=4x7 4+7=11 42. Find the greatest common factor for 36, 72, and 144. GCF 36 (36) 1, 2,3,4,6,9,12,18,36 (72) 1,2,3,4,6,8,9,12,18,24,36,72 (144) 1,2,3,4,6,9,12,16,24,36,48,72,144 2.3 pages 142-144 8 . 3 7 18. Business and finance. At lunch, 5 people out of a group of 9 had hamburgers. What fraction names the part of the group who had hamburgers?
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