Help 5th grade math!!

kathyhunter

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Feb 29, 2012
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Someone please help my 5th grade dd math homework has stumped me!

Farmer Mead has 42 guinea pigs on the farm. She wants to build a rectangular pen . She must allow one square meter of area for each of the pigs. the fence cost 1$ per meter. Find four different rectangular pens that have EXACTLY the area needed for 42 guinea pigs.

1. what are the dimensions of each pen?
2. how much would each cost?
 
Help !!

Can u message me a place where u can find free fraction sheetss where you can divide fractions and multiply them ?
 
website for worksheets

Can u message me a place where u can find free fraction sheetss where you can divide fractions and multiply them ?
you can go to purplemath.com to print out any kind of math sheets u need also it will print u out the answer sheet so u can check ur problems when u r done i hope this sight helps u i know it is been very helpful for me
 
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I know how to spell just fine . I was just trying to help you with a page you can get worksheets from. F Y I i have a job been working all my life. I was not filling out a app. You knew what i was saying ,that is all that matters.
 

u cn c the result of using standard and nonstandard abbreviations.
The brain must take an extra millisecond to process the information.
And anything that complicates communication is counterproductive.

i c u uu txt'g, and assume that anyone can decipher the code.

There should be a law: Don't text and derive.
 
KathyHunter, you may be under the impression that the problem asks for four different pens that the 42 guinea pigs are to be divided among. That is not the way I interpret the problem- you are asked to find 4 different pens, each of which must be large enough to hold the 42 hamsters. Each guinea pig requires one meter of space so each pen must have area 42 meters. I presume you know that the area of a rectangle is "length times width" so, letting l represent the length and w the width, you must have lw= 42. Find 4 different pairs of numbers, l and w, whose product is 42. There are, in fact, four different pairs of integers that work. I don't see any real reason why the lengths of the sides must be an even number of feet- if you allow parts of feet, there are an infinite number of pairs of l and w that will work.
 
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