anonymous
  • anonymous
A students desk at home is rectangular in shape and measures 3 feet wide by 5 feet long. Find the perimeter of the desk in centimeters. Then convert the answer to decimeters. Please help :) I know the correct answer is 141.4 yards....but how is it figured?
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
O.K i know how to find perimiter do you know how to find the basic perimiter?
anonymous
  • anonymous
no, I am lost.
anonymous
  • anonymous
O.K at the beginning of the problem it says 3 by 5 so you multiply 3 times 5 do you follow?

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anonymous
  • anonymous
correct answer is actually 16ft...so sorry...Yes I follow so far
anonymous
  • anonymous
thats is O.K 1 foot = 30.48 OR 30 12/25 cm 1 cm = 0.1 OR 1/10 Decimeters These are the Conversions from feet to cenimeters and cenimeters to decenimeters. this is how you are gonna finnd dout how to get your answer
anonymous
  • anonymous
okay for the first step 3 times 5 is fifteen....where does 16 come in?
anonymous
  • anonymous
O.K so is what your saying the the over all answer to the problem is 16 feet and not 141.4 yards?
anonymous
  • anonymous
yes...was looking at a wrong answer...correct is 16 ft
anonymous
  • anonymous
I honestly cannot figure this out i am sooooooo sorry!
anonymous
  • anonymous
me either lol thanks tho
anonymous
  • anonymous
okay so I understand how we got 16 feet. Now please give me simple instructions on how to conver to centimeters and decimeters. Thanks
radar
  • radar
Take the number of centimeters example 12 cm. to convert that to decimeter you multiply by .1 Now 12 cm would become 1.2 dm
anonymous
  • anonymous
u have been very helpful. Blessings!

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