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-   -   Find equation to math problem (https://www.askmehelpdesk.com/showthread.php?t=704327)

  • Sep 23, 2012, 06:46 PM
    jazzyjo94
    Find equation to math problem
    In the decade beginning with 1901,about 8.8 million immigrants entered the US. In the following decade, this number dropped to approximately 5.7 million people. Find the percent decrease, to the nearest whole percent.
  • Sep 23, 2012, 07:03 PM
    teacherjenn4
    What do you think the answer is? We can help you, but you must post an attempt.
  • Sep 23, 2012, 07:05 PM
    jazzyjo94
    If I thought I knew what the answer is I wouldn't be asking an ask website I've worked on it for 15 minutes and can't figure it out
  • Sep 23, 2012, 07:08 PM
    teacherjenn4
    Do you know the formula to determine percentage?
  • Sep 23, 2012, 07:11 PM
    jazzyjo94
    like, the percent * the total=the part, that ?
  • Sep 23, 2012, 07:13 PM
    teacherjenn4
    Quote:

    Originally Posted by jazzyjo94 View Post
    like, the percent * the total=the part, that ?

    New value-old value/old value
    then multiply the answer x100
  • Sep 23, 2012, 07:13 PM
    Wondergirl
    How big was the decrease in millions? (forget the percentage right now)
  • Sep 23, 2012, 07:16 PM
    jazzyjo94
    OK I get it now. Yeah we haven't learned that, that would be why I wouldn't know thanks a bunch.
  • Sep 23, 2012, 07:17 PM
    teacherjenn4
    Quote:

    Originally Posted by jazzyjo94 View Post
    ok i get it now. yeah we havent learned that, that would be why i wouldnt know thanks a bunch.

    So, what did you get? Show me how you plugged your problem into the formula I gave you.
  • Sep 23, 2012, 07:22 PM
    teacherjenn4
    Quote:

    Originally Posted by teacherjenn4 View Post
    So, what did you get? Show me how you plugged your problem into the formula I gave you.

    Sorry: try this
    Original amount- new amount/divided by original amount
    Then multiply x100
    I typed it backwards before sorry!
  • Sep 23, 2012, 07:23 PM
    jazzyjo94
    My teacher gives us the answer since it is a review and I knew the answer would be 35% but didn't know how to get it so when you gave me that I did 5.7-8.8 and got -3.1 then divided that by 8.8 and got -.35 then mulitplied by 100 and got -35.23
  • Sep 23, 2012, 07:23 PM
    jazzyjo94
    The decrease was 3.3 million
  • Sep 23, 2012, 07:25 PM
    Wondergirl
    Quote:

    Originally Posted by jazzyjo94 View Post
    the decrease was 3.3 million

    3.1 million

    8.8 - 5.7 = 3.1
  • Sep 23, 2012, 07:32 PM
    teacherjenn4
    Quote:

    Originally Posted by jazzyjo94 View Post
    the decrease was 3.3 million

    8.8-5.7=3.1. 3.1 /8.8=35.227 which rounds to a decrease of 35%
  • Sep 23, 2012, 07:33 PM
    teacherjenn4
    Quote:

    Originally Posted by teacherjenn4 View Post
    8.8-5.7=3.1. 3.1 /8.8=35.227 which rounds to a decrease of 35%

    Your question said to round to the nearest whole percentage
  • Sep 23, 2012, 08:30 PM
    jazzyjo94
    OK I got it now
  • Sep 23, 2012, 08:32 PM
    jazzyjo94
    Quote:

    Originally Posted by Wondergirl View Post
    3.1 million

    8.8 - 5.7 = 3.1

    Right that's what I met I typed it wrong
    So then what?
  • Sep 23, 2012, 08:34 PM
    Wondergirl
    Quote:

    Originally Posted by jazzyjo94 View Post
    right thats what i met i typed it wrong
    so then what?

    You and teacherjenn figured it out.
  • Sep 23, 2012, 08:42 PM
    teacherjenn4
    Quote:

    Originally Posted by jazzyjo94 View Post
    right thats what i met i typed it wrong
    so then what?

    Remember that you have to answer your original question. Do you understand how to do that?
  • Sep 23, 2012, 08:45 PM
    jazzyjo94
    My percent decrease would be 35%.

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