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dancechick76
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The ratio of three measures of a triangle is 1/4:1/8:1/6. Its perimeter is 4.75 feet. Find the length of the longest side.
 one year ago
 one year ago
dancechick76 Group Title
The ratio of three measures of a triangle is 1/4:1/8:1/6. Its perimeter is 4.75 feet. Find the length of the longest side.
 one year ago
 one year ago

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mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
dw:1357271432608:dw
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
First of all, we have to make the ratios have the same denominator. So we have to find the LCM of the three. Can you do that?
 one year ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
can you do it?
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
the LCM is 24
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
Okay. So tell me the ratios given the LCM being 24.
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
6/24:3/24:4/24
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
Okay, so now we'd divide 4.75 by 24, because those are the ratios given. Then we'd multiply that number by 6, because that is the longest side. Get it?
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
dw:1357271703422:dw
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
Yep. That's what I got for the longest side.
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
My book says 2.2 feet...So the correct answer should be 2.2, I just don't understand how to get that.
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
if I add the x's together I would get 13/24x=4.75
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
Should I divide 4.75 by 24, then multiply by 13 to find x? then plug x into the fractions?
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
I apologize, my internet died for a moment there.
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
I'm not sure, because that was my answer, but you should try the method mayank suggested. Let me try that too.
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
Look at this: http://www.algebra.com/services/rendering/simplifier.mpl?expression=1%2F4%2Ax%2B1%2F8%2Ax%2B1%2F6%2Ax=4.75
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
Then, the largest fraction is 1/4, and if we divided x by 4, we'd get the answer listed in the book.
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
Oh thank you!!!!
 one year ago

radh Group TitleBest ResponseYou've already chosen the best response.1
No problem. Sorry for being wrong the first time. :P
 one year ago

dancechick76 Group TitleBest ResponseYou've already chosen the best response.0
haha its fine!
 one year ago
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