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Mathematics 13 Online
OpenStudy (anonymous):

HELP WITH ALGEBRA! WILL GIVE MEDAL!

OpenStudy (anonymous):

11. Which inequality matches the graph? number line (1 point) 2n + 5 ≤ 7 2n – 5 < 7 2n + 5 < 7 2n + 5 ≥ 7 12. Which inequality matches the graph? number line (1 point) 6w + 6 > 18 6w + 6 ≥ 18 6w – 6 > 18 –6w + 6 > 14 For questions 13–14, write and solve an equation. 13. A baseball bat and 8 baseballs cost $163.25. The bat costs $106.45. What is the cost c of one baseball? (1 point) 163.25 – 8c = 106.45; $33.71 8c + 106.45 = 163.25; $7.10 8c + 163.25 = 106.45; $7.10 8c – 106.45 = 163.25; $33.71 14. Jacob weighs 64 pounds. Together, he and his sister weigh eight pounds more than two times the weight of his sister. What is the weight, w, of Jacob’s sister? (1 point) 64 + w = 2w + 8; 56 pounds 64 + w – 8 = 2w; 62 pounds 64 + w = 2w; 64 pounds 64 + w = 2w – 8; 72 pounds

OpenStudy (anonymous):

where's the number line?

OpenStudy (anonymous):

11

OpenStudy (anonymous):

12

OpenStudy (anonymous):

@zubhanwc3

OpenStudy (zubhanwc3):

11) a 12) a 13) \[106.45 + 8c =163.25\]\[8c=56.8\]\[c=7.1\]so b 14)\[64+w = 2w+8\]\[w=56\]so a

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