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anonymous

  • one year ago

can anyone tell me how to solve this problem? i cant understand what is it means.... Rosamaria is setting up a 20 gallon saltwater fish tank that needs to have a salt content of 3.5%. If she has 2.5% salt and water that has 3.7% salt, how many gallons of the water with 3.7% salt content should she use

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  1. anonymous
    • one year ago
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    lets call the amount of \(3.7\%\) salt water \(x\) since that is what you are trying to find

  2. anonymous
    • one year ago
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    and since the total is \(20\) that means the amount of \(2.5\%\) solution is \(20-x\)

  3. anonymous
    • one year ago
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    wait, i cant understand why amount of 3.7% salt water is x

  4. anonymous
    • one year ago
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    the total amount of salt you want is \(3.5\%\) of \(20\) which is \(.035\times 20=.7\) ok lets back up

  5. anonymous
    • one year ago
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    what are you asked at the end of the question?

  6. anonymous
    • one year ago
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    i mean that what is the thing that the problem is asking about

  7. anonymous
    • one year ago
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    how many gallons of the water with 3.7% salt content should she use? is the question right?

  8. anonymous
    • one year ago
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    i think it is ;;

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spraguer (Moderator)
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