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anonymous

  • one year ago

.80+.40=12.8 c+t=24 what is c

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  1. anonymous
    • one year ago
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    what do I do from here @pinkbubbles

  2. anonymous
    • one year ago
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    here's the word problem Alex stocks up for winter. He buys 24 cans of vegetables. He pays 80 cents per can for tomatos and 40 cents per can for corn, for a total cost of $12.8

  3. anonymous
    • one year ago
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    \[\text{Solve}[\{0.8 c+0.4 t=12.8,c+t=24\}] \]Work it out. c should equal 8 .

  4. anonymous
    • one year ago
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    but how do I work it out

  5. anonymous
    • one year ago
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    c + t =24, thus, t = 24 - c Plug 24-c for each occurrance of t in the first equation and solve the result for c.

  6. anonymous
    • one year ago
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    so then it would be 3?

  7. anonymous
    • one year ago
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    Sorry, occurrance should have been spelled, occurrence.

  8. anonymous
    • one year ago
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    so u said that c would equal 8 then wouldn't t equal 3

  9. anonymous
    • one year ago
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    0.4 (24 - c) + 0.8 c = 12.8 0.8 c - 0.4 c + 9.6 =12.8

  10. anonymous
    • one year ago
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    so what do I do next

  11. anonymous
    • one year ago
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    0.4 c = 12.8 - 9.6 0.4 c = 3.2 c = 8

  12. anonymous
    • one year ago
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    so how did u get 9.6

  13. anonymous
    • one year ago
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    so is 8 the answer or the value of c

  14. anonymous
    • one year ago
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    0.4 (24 - c) + 0.8 c = 12.8 9.6 + 0.8 c = 12.8

  15. anonymous
    • one year ago
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    "so is 8 the answer or the value of c ? " Yes.

  16. anonymous
    • one year ago
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    so the answer would be 16 right

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