Idaho Society of Professional Engineers PO Box 170239, Boise, ID 83717-0239 208-426-0636 Fax: 208-426-0639 E-Mail: ispe@idahospe.org |
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Idaho Society of Professional Engineers
FROM THE IDAHO BOARD OF PROFESSIONAL ENGINEERS AND
PROFESSIONAL LAND SURVEYORS…. http://adm.idaho.gov/adminrules/bulletin/mstrtoc.htm.
ISPE SINCERELY APPRECIATES THE SUPPORT OF ALL OF OUR CURRENT 2008 - 2009 SUSTAINING ORGANIZATIONS: AHJ Engineers PC B & A Engineers, Inc Briggs Engineering, Inc Elkhorn Engineers G & S Structural Engineers J.M. Miller Engineering Inc J-U-B Engineers, Inc Land Solutions, Land Surveying & Consulting Mason & Stanfield Inc Materials Testing & Inspection Inc MWH Progressive Engineering Group Inc Quadrant Consulting, Inc Riedesel Engineering Inc Schiess & Associates Smarter Process Inc Stapley Engineering Terracon TerraGraphics Environmental Engineers Inc Walker Engineering
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supporting the needs of the engineer including professional development.
Black Friday/Cyber Monday On Black Friday, Denise woke up at 3am to make sure she was able to get to the store for the “early bird” special – 60% off all clothing in the store! If Denise paid $50.64 for a dress after 5.5% sales tax, what was the original price of the dress? ----------------------------------------------------------------------------- Sally has a coupon that she can use in addition to the sales at a particular store. Excited to stock up, she immediately finds two sweaters that are each 30% off and decides to use her “buy one get one half off” coupon to save even more. If the two sweaters were originally the same price, what single percent discount would have resulted in the same savings as Sally’s combined discount? ----------------------------------------------------------------------------- On Cyber Monday, Bill is able to get 20% off of TVs at his favorite online store. If one TV was originally $699.99 and the other was 749.99, what is the positive difference between the two prices after the discount is applied?
Answer to the last MATHCOUNTS problem: There are four color options for each of the five tail feathers. Thus, there are 4(4)(4)(4)(4) = 1024 ways to paint the tail feathers using solid colors for each feather. ----------------------------------------------------------------------------- Since Marvin and Geoff need to sit next to each other, let’s consider them as one place for now. That means there are 8 places that need to be assigned. Since we are dealing with a round table we need to remember that we can shift everyone 1, 2, 3, 4, 5, 6, 7 or 8 seats without changing the order. Thus, there are 8!/8 = 7! = 5040 arrangements of 8 places. Now, recall that we considered Marvin and Geoff as one place but they can actually sit in 2 orders (Marvin, Geoff or Geoff, Marvin), thus there are actually 10,080 possible arrangements. ----------------------------------------------------------------------------- Since we want to stick to the recipe we will use the following proportion: 7/(1/4) = 16/x Solving for x we see that Lillian needs 7x = 16/4 —›x = 4/7 cups of parmesan cheese.
If you want to see the problem again, click http://mathcounts.org/Page.aspx?pid=1394
Idaho Society of Professional Engineers
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