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anonymous
 one year ago
Let
X = {5, 10, 15, 20, 25, 30, 35, 40}.
Define a relation
on X as follows. For
a, b is in X,
a
b
if b can be obtained from a by adding a (possibly empty) collection of dimes (10 cents) and quarters (25 cents). So, for example,
25
35, but 25
30.
List all minimal elements of
(X,
).
(Enter your answers as a commaseparated list
anonymous
 one year ago
Let X = {5, 10, 15, 20, 25, 30, 35, 40}. Define a relation on X as follows. For a, b is in X, a b if b can be obtained from a by adding a (possibly empty) collection of dimes (10 cents) and quarters (25 cents). So, for example, 25 35, but 25 30. List all minimal elements of (X, ). (Enter your answers as a commaseparated list

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0http://www.awesomescreenshot.com/image/454102/5c442f15a749a336294b889e959b94fb

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lets start with 5 you cannot add 10 or 25 to 5 to get 10 but you can add 10 to 5 to get 15, so \(5R15\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0check my screen shoot,and let me know correct answer only

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0refresh my memory what does "minimum elements" of a relation mean?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't know i am stuck with this queston, I don't know

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3reference for the definition of a minimal set: http://ndp.jct.ac.il/tutorials/discrete/node34.html

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3I think minimal element is such that it cannot be the result of the relation . So out of {5,10,15,20....}, we cannot get 5 or 10 by the operation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is obvious and already written in my question,i have not asked this... i think u must read my question again, don't repeat question sentences in answer again

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3No i think you should read the reply again.

mathmath333
 one year ago
Best ResponseYou've already chosen the best response.0she is saying the answer is \(\{15,20,25,30,35,40\}\)

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3I was doing the 2nd one first since it was easier :/ sorry about that! The second one should be 5 and 10 no operation goes into those numbers

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3@meneedy Do u understand?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0{15,20,25,30,35,40} is is my answer

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3\(\color{#0cbb34}{\text{Originally Posted by}}\) @pooja195 I think minimal element is such that it cannot be the result of the relation . So out of {5,10,15,20....}, we cannot get 5 or 10 by the operation. \(\color{#0cbb34}{\text{End of Quote}}\) Therefore 5 and 10 would be the answers

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3Rember that minimal elements cannot be obtained as a result of the relation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes, i understand it,

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3\(~~~~~~~~~~~~~~~~~~~~~~~~~~\Huge{\color{red}{\heartsuit}\color{orange}{\bigstar}\color{yellow}{\heartsuit}\color{green}{\bigstar}\color{blue}{\heartsuit}\color{purple}{\bigstar}\color{hotpink}{\heartsuit}}\)\(\Huge\bf\color{#FF0000}W\color{#FF4900}e\color{#FF9200}l\color{#FFDB00}c\color{#FFff00}o\color{#B6ff00}m\color{#6Dff00}e\color{#24ff00}~\color{#00ff00}t\color{#00ff49}o\color{#00ff92}~\color{#00ffDB}O\color{#00ffff}p\color{#00DBff}e\color{#0092ff}n\color{#0049ff}S\color{#0000ff}t\color{#2400ff}u\color{#6D00ff}d\color{#B600ff}y\color{#FF00ff}!\)\(~~~~~~~~~~~~~~~~~~~~~~~~~~\Huge{\color{red}{\heartsuit}\color{orange}{\bigstar}\color{yellow}{\heartsuit}\color{green}{\bigstar}\color{blue}{\heartsuit}\color{purple}{\bigstar}\color{hotpink}{\heartsuit}}\)\(\Large\bf\color{Lime}{Please,\ don't\ hesitate\ to\ ask\ questions!}\)\(\Large\bf\color{magenta}{We're\ here\ to\ help!}\Large\color{magenta}{\ddot\smile}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you help me 2 more questions?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.3You'll need to repost them again
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