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Unformatted text preview: R 4 , and give an example of four vectors that don’t span R 4 . Please explain why your examples work. 5. At the pet store, mice cost 25 cents apiece, hamsters cost a dollar apiece, and guinea pigs cost $15 apiece. A hungry cat goes into the the store and buys some of each. The cat buys at least one of each, and buys nothing else, spending a total of $100 on exactly 100 animals. How many of each did the cat buy? [You can do this by setting up two equations and row reducing. There will be a free variable in the solution. You will need to choose the value of the free variable so that solutions are whole numbers.]...
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 Spring '08
 weiss
 Math, Algebra, Addition, Multiplication

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