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School math question. Your input?

Posted on 03/10/2015 5:48:37 PM PDT by MNDude

My daughter has this problem-solving question for her homework. I'm feeling kind of dumb on this one. What do you think is the correct answer?

Mrs. Feltner wants to put a border on a baby blanket. The area of the blanket is 12 square units. Which shows how many units of materials she needs for the border?

A 12 units B 14 units C 15 units D 21 units


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To: JudyinCanada; All
Perimeter = Length plus width x 2.

Judy has it correct here and all the others that said there is more than one answer.

The teacher must have graduated from publik school.

If the area is a circle the perimeter is 2πR, if it's an oval I need to get out a book.

41 posted on 03/10/2015 6:11:17 PM PDT by Clint N. Suhks (Bibi is the President we wish we had.)
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To: SkyDancer
The way I see it: 5j – (j – 2k) +36 +5k ݎ ଶ ൌ0ݎ3

Kudos for remembering to include the ൌ factor. Many mathematicians overlook it. In fact, if I recall correctly, the lack of that value in their calculations is what brought the East German space program to a halt.

42 posted on 03/10/2015 6:11:19 PM PDT by Leaning Right (Why am I holding this lantern? I am looking for the next Reagan.)
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To: MNDude

It’s B but only if the blanket is 3 units by 4 units. Otherwise, there’s no way to tell. A blanket 1 unit wide by 12 units long will have a border of 26 units but still has an area of 12 square units.


43 posted on 03/10/2015 6:12:30 PM PDT by Bob (Violence in islam? That's not a bug; it's a feature.)
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To: Leaning Right

Yeah, they always leave that statement out. Fortunately I found it carved into a pillar at Thebes ...


44 posted on 03/10/2015 6:15:46 PM PDT by SkyDancer (I Was Told Nobody Is Perfect But Yet, Here I Am ...)
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To: MNDude

How big is the border supposed to be? Is it 1 inch or 1 foot? I don’t know how to sew.


45 posted on 03/10/2015 6:18:23 PM PDT by Lurkina.n.Learnin (It's a shame nobama truly doesn't care about any of this. Our country, our future, he doesn't care)
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To: MustKnowHistory

I second... 14 units


46 posted on 03/10/2015 6:18:50 PM PDT by Dubh_Ghlase
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To: MNDude

The only possible answer is B, none of the other answers could possibly be correct.


47 posted on 03/10/2015 6:19:11 PM PDT by eastforker (Cruz for steam in 2016)
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To: MNDude

1. Is this Common Core?
2. If answer to #1 is yes, the answer to the question is patriarchy.


48 posted on 03/10/2015 6:19:27 PM PDT by goodwithagun (My gun has killed fewer people than Ted Kennedy's car.)
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To: Thurifer the Censer
Perhaps the questioner might tell us how many units wide the "border" is to be. Neither is the information given that tells the student whether the finished or the unfinished blanket is to be 12 square units. IOW, is the border within the blanket or added to its perimeter?

This is a very poorly worded question, doubtless dreamed up by a Teacher's College Education Major, rather than some sort of technical person.

BTW, 2x6 and 1x12 would be the same
Wrong. One presumes a "square unit" has 4 sides, so by your reasoning: (2)1 + (2)12 = 26

This also might be an internet hoax, an update of the old joke: "Farmer Brown has planted 14 acres of potatoes. Farmer Jones has 200 acres of winter wheat. What color is Farmer Smith's wife's dress?"

BTW, where is the question en español? In Ebonics? Is Cursive allowed in the answer? May one use a calculator? The question is also racist and highlights the Bush-caused situation in Ferguson where the baby daddy done been shot by the po-po and baby ain't got no blanket.

49 posted on 03/10/2015 6:20:35 PM PDT by Kenny Bunk (Obama kept his promises. Has your Republican Congressman done the same?)
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To: Clint N. Suhks

It could be 10 square units.


50 posted on 03/10/2015 6:20:50 PM PDT by Perdogg (I'm on a no Carb diet- NO Christie Ayotte Romney or Bush - stay outta da Bushesh)
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To: kalt

You got it.


51 posted on 03/10/2015 6:21:23 PM PDT by Kenny Bunk (Obama kept his promises. Has your Republican Congressman done the same?)
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To: MNDude
If it was shaped like this the perimeter would be 26...

52 posted on 03/10/2015 6:21:37 PM PDT by Clint N. Suhks (Bibi is the President we wish we had.)
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To: dinodino

The question is poorly worded! I just discussed this with my wife who is a quilter. In quilting there is a difference between border and binding(DAMHIKT). On a quilt 3 units by 4 units, a binding would be 14 units whereas a border would require 18 units or blocks. The binding just goes around the outside edge: 4+3+4+3=14 (the perimiter) whereas a border uses those 14 plua 4 additional units since you have to fill in the corner spaces.

Obviously, whoever wrote the question is not a quilter. To bad the concepts of perimeter, circumfrence, etc are foreign to the present educational system!


53 posted on 03/10/2015 6:21:37 PM PDT by Nuocmam
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To: kalt

Blanket 3x4 needs 14 untis of border.
Blanket 2x6 needs 16 units of border.
Blanket 1x12 needs 26 units of border.

There is not enough information to know which it is.


54 posted on 03/10/2015 6:22:28 PM PDT by super7man (Oh why did I post that, now I'll never be able to run for Congress.)
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To: MNDude

Not enough information.

This is not a geometry question. It is union made.


55 posted on 03/10/2015 6:22:47 PM PDT by MV=PY (The Magic Question: Who's paying for it?)
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To: Perdogg

The only given we have is it’s 12 square units.


56 posted on 03/10/2015 6:22:50 PM PDT by Clint N. Suhks (Bibi is the President we wish we had.)
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To: MNDude
no no no... the real question is what color is it, blue pink or rainbow and does she feel about the color
57 posted on 03/10/2015 6:24:14 PM PDT by Chode (Stand UP and Be Counted, or line up and be numbered - *DTOM* -w- NO Pity for the LAZY - 86-44)
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To: MV=PY

Can this wait until tomorrow? I have to call Al Sharpton.


58 posted on 03/10/2015 6:25:05 PM PDT by Kenny Bunk (Obama kept his promises. Has your Republican Congressman done the same?)
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To: super7man

If you have a 3x4 blanket with 12 1 square unit s the border cp would be 10 ssquare


59 posted on 03/10/2015 6:26:39 PM PDT by Perdogg (I'm on a no Carb diet- NO Christie Ayotte Romney or Bush - stay outta da Bushesh)
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To: MNDude

The answer is “Borders are racist.”


60 posted on 03/10/2015 6:27:08 PM PDT by tacticalogic
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