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anonymous

  • one year ago

Yesterday, the snow was 2 feet deep in front of Archie’s house. Today, the snow depth dropped to 1.6 feet because the day is so warm. What is the percent change in the depth of the snow?

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  1. sammixboo
    • one year ago
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    So first, subtract the original number, which is 2, with the second number, which is 1.6. After you finish Subtracting 2 - 1.6, divide our answer by 2, the original number. So pretty much our problem so far looks like this |dw:1442328032710:dw|

  2. anonymous
    • one year ago
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    so you will get 12

  3. sammixboo
    • one year ago
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    I'm sorry, subtract 1.6 - 2, not 2 - 1.6|dw:1442328137383:dw|

  4. anonymous
    • one year ago
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    so it 2

  5. sammixboo
    • one year ago
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    Not quite. 1.6 - 2 will be a negative decimal

  6. anonymous
    • one year ago
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    -0.4

  7. sammixboo
    • one year ago
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    Right, so now we have |dw:1442328255258:dw|

  8. sammixboo
    • one year ago
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    What do you get? This will also be a negative decimal

  9. anonymous
    • one year ago
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    -0.2

  10. sammixboo
    • one year ago
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    Right! The last step is to multiply our answer, -0.2, by 100 and throw on a percent sign. what is -0.2 x 100?

  11. anonymous
    • one year ago
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    -20

  12. sammixboo
    • one year ago
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    ight, so there is a -20% change

  13. sammixboo
    • one year ago
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    Also, 20% decrease

  14. anonymous
    • one year ago
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    thanks

  15. anonymous
    • one year ago
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    Jonathan’s class has 30 boys. Of the students in his class, 60% are girls. How many girls are in Jonathan’s class?

  16. sammixboo
    • one year ago
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    Well, we know that the boys equal to 40% of the class, right?

  17. anonymous
    • one year ago
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    yes

  18. anonymous
    • one year ago
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    this is a new question Lydia bought a shirt at 20% off its retail price of $40. She paid 5% tax on the price after the discount. How much did Lydia pay for the shirt?

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