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freeG13

  • one year ago

Jenna buys 12 lb of meat. Some of the meat is chicken and costs $1.90/lb. The rest is beef, which costs $4.30/lb. She spends a total of $34.80. Which equation models this situation? Let c represent the number of pounds of chicken she buys. A. (1.9 + 4.3)(12 – c) = 34.8 B. 4.3c + 1.9(c + 14) = 34.8 C. 4.3c + 1.9(12) = 34.8 D. 1.9c + 4.3(12 − c) = 34.8

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  1. anonymous
    • one year ago
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    c is the pounds of chicken at $1.90/lb. How can you write the total cost of the chicken?

  2. freeG13
    • one year ago
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    well C is the amount of chicken there is

  3. freeG13
    • one year ago
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    or the pounds of chicken she buys

  4. deadpoolroxz
    • one year ago
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    @Vocaloid

  5. anonymous
    • one year ago
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    c is the pounds of chicken she buys. And she pays $1.90 for each pound. So the total amount she pays for chicken is the 1.90 * c

  6. freeG13
    • one year ago
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    but your forget beef

  7. anonymous
    • one year ago
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    didn't forget. Just making sure you got that part first

  8. anonymous
    • one year ago
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    So if 12 pounds of meat total was bought, and c pounds of it was chicken, how can you write the amount of beef sold?

  9. anonymous
    • one year ago
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    beef = all meat - chicken

  10. nikato
    • one year ago
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    well the total of chicken and beef is 12 pounds let pounds of chicken=c and let pounds of beef=b so c+b=12 ok?

  11. freeG13
    • one year ago
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    ok

  12. anonymous
    • one year ago
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    right, so then solve that for b

  13. nikato
    • one year ago
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    and you know it cost 1.9 per pound of chicken, which you can write as 1.9c and 4.3 per pound of beef, which is the same as 4.3b and you know the total cost is 34.80. can you try to make an equation using these three information?

  14. freeG13
    • one year ago
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    C?

  15. yolomcswagginsggg
    • one year ago
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    I was called?

  16. anonymous
    • one year ago
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    how did you get C? what did you do?

  17. freeG13
    • one year ago
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    i guessed

  18. nikato
    • one year ago
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    not exactly given that info. you're equation would be 1.9c + 4.3b=34.80 but remember our earlier equation. c+b=12 we want to isolate c so we have c=12-b now substitute this into the other equation

  19. yolomcswagginsggg
    • one year ago
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    D 100%

  20. freeG13
    • one year ago
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    oh thanks

  21. yolomcswagginsggg
    • one year ago
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    Np

  22. nikato
    • one year ago
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    yup^ i agree

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