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mystique2626

  • 2 years ago

A family refers to two or more people related by marriage,birth, or adoption who reside together. in 2000, in Country A, the average networth of a family was $240,000 and there were about 8.8 * 10 to the seventh power families. Calculate the total networth of a family in 2000

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  1. mystique2626
    • 2 years ago
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    I came up with .0027 but I do not think that is right

  2. jim_thompson5910
    • 2 years ago
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    it says "in 2000, in Country A, the average networth of a family was $240,000 " so the question is asking what's already given...something seems off

  3. mystique2626
    • 2 years ago
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    I typed it as it was written, I have to use scientific notation and round to the nearest tenth as needed \[\frac{ 2.4*10^{5} }{ ?8.8*10^{7} }\]

  4. jim_thompson5910
    • 2 years ago
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    i see how you got 0.0027, but the problem doesn't make sense. It gives you the net worth, but asks you what the net worth is.

  5. mystique2626
    • 2 years ago
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    Then I came up with \[2.7\times10^{-2}\]

  6. mystique2626
    • 2 years ago
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    I see what you are saying about that as well Im so lost lol

  7. jim_thompson5910
    • 2 years ago
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    \[\frac{ 2.4*10^{5} }{ 8.8*10^{7} } = \frac{2.4}{8.8} \times 10^{5-7}\] \[\frac{ 2.4*10^{5} }{ 8.8*10^{7} } = 0.27 \times 10^{-2}\] \[\frac{ 2.4*10^{5} }{ 8.8*10^{7} } = (2.7 \times 10^{-1}) \times 10^{-2}\] \[\frac{ 2.4*10^{5} }{ 8.8*10^{7} } = 2.7 \times 10^{-1-2}\] \[\frac{ 2.4*10^{5} }{ 8.8*10^{7} } = 2.7 \times 10^{-3}\]

  8. jim_thompson5910
    • 2 years ago
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    but I doubt that's what you're looking for since they want the net worth

  9. mystique2626
    • 2 years ago
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    I am not sure where you came up with the 2.7 x \[10^{-1-2}\] because my examples from other problems just subtract straight down

  10. jim_thompson5910
    • 2 years ago
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    I'm adding the exponents because I'm multiplying 10^(-1) and 10^(-2)

  11. jim_thompson5910
    • 2 years ago
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    -1 + (-2) = -1 - 2

  12. mystique2626
    • 2 years ago
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    No I get that part, what I do not get is where the \[10^{-1}\] even came from????

  13. jim_thompson5910
    • 2 years ago
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    oh 0.27 = 2.7 x 10^(-1)

  14. mystique2626
    • 2 years ago
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    Well almost I am pretty sure that if you take the original equation and then

  15. mystique2626
    • 2 years ago
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    divide the parts seperately it equals \[2.7\times10^{-2}\]

  16. jim_thompson5910
    • 2 years ago
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    the answer is 0.0027, which in scientific notation is 2.7 x 10^(-3)

  17. jim_thompson5910
    • 2 years ago
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    so you're missing that 10^(-1)

  18. jim_thompson5910
    • 2 years ago
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    well i mean \[\frac{ 2.4*10^{5} }{ 8.8*10^{7} } = 0.0027\]

  19. mystique2626
    • 2 years ago
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    So Country A's total family net worth is .0027 dollars?

  20. jim_thompson5910
    • 2 years ago
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    problem is...that makes no sense whatsoever

  21. jim_thompson5910
    • 2 years ago
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    if that was true, then this is the poorest country ever (and I mean really poor)

  22. mystique2626
    • 2 years ago
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    lol now you see my confusion

  23. jim_thompson5910
    • 2 years ago
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    yeah this problem is just messed up

  24. jim_thompson5910
    • 2 years ago
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    I'm sry

  25. ChmE
    • 2 years ago
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    maybe it is asking for the total networth of all the families combined.?

  26. jim_thompson5910
    • 2 years ago
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    hmm good point, but it says Calculate the total networth of A FAMILY in 2000 so idk

  27. ChmE
    • 2 years ago
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    I see the confusion. The problem is worded funny. It is your choice, finding the total seems more logical to me. As we are told in engineering, if you state your assumption you can not be wrong, haha. So state I am assuming they are asking for the total networth of all families. haha

  28. ChmE
    • 2 years ago
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    I don't like this problem ultimately.

  29. jim_thompson5910
    • 2 years ago
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    same here

  30. mystique2626
    • 2 years ago
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    Is it maybe asking that i use the scientific notation of simplifying the $240,000 down to 2.4 x \[10^{5}\]

  31. jim_thompson5910
    • 2 years ago
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    I'd just say the answer is $240,000...that's what they're asking for

  32. jim_thompson5910
    • 2 years ago
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    sure you can write the answer in sci notation if you want

  33. mystique2626
    • 2 years ago
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    Thank you to you both, I'm simply going to show the work and then explain where the word problem became confusing as to what it was asking for.

  34. jim_thompson5910
    • 2 years ago
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    np

  35. lganesh
    • 2 years ago
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    The problem does not make meaning something is missing

  36. mystique2626
    • 2 years ago
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    That is the entire problem. and then it says Country A's total family net worth is ____ dollars? (use scientific notation, and round to the nearest tenth as needed

  37. mystique2626
    • 2 years ago
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    well the answer ended up being \[2.1\times10^{13}\]

  38. jim_thompson5910
    • 2 years ago
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    hmm there's probably some formula used to get that...not sure which one

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