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11111nata11111 [884]
3 years ago
9

Can someone please answer this question please answer it correctly and please show work I need it please help me I need it

Mathematics
1 answer:
VMariaS [17]3 years ago
4 0

Answer:

9. B, C, D

10. A, D, E

Step-by-step explanation:

9. A. Students who bring lunch do not represent cafeteria purchases.

B. - D. Are randomized.

10. A. 1/4 of 50 is 12.5. about equal to 12

B. 12% of 50 is 6. not equal to 12

C. 12 ÷ 50 = 24. 3,000 × 0.24 = 720. not less than 500

D. (see above work) 720 = 720

E. 3,000 - 720 = 2,280. more than 2,000

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