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anonymous

  • one year ago

A newborn baby's heart weighs approximately 20 grams. An adults heart weighs about 300 grams. As a grows into an adult, by what precent does the baby's heart increase in weight ? PLZ HELP!!!

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  1. anonymous
    • one year ago
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    @Halia subtract 300 from 20.

  2. anonymous
    • one year ago
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    Kk @AliceCullen

  3. anonymous
    • one year ago
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    I did that @AliceCullen & I got 280 what should I do now ?

  4. anonymous
    • one year ago
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    That's your answer.

  5. mathstudent55
    • one year ago
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    Percent change formula: \(percent~change = \dfrac{new ~number - old ~number}{old~number} \times 100\)

  6. mathstudent55
    • one year ago
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    280 is just the change, not the percent change. 280 is only the numerator of the percent change formula. Now divide by the old number (20 grams) and multiply by 100 to find the percent change.

  7. mathstudent55
    • one year ago
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    Also, it's "subtract 20 from 300", not "subtract 300 from 20".

  8. anonymous
    • one year ago
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    @mathstudent55 should I divide 20 from 280 ???

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