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Mathematics
OpenStudy (anonymous):

blues were 5 dollars each and yellows were 8 dollars each. if penelope spent 82 dollars and the number of blues she bought was 2 greater than twice the number of yellows. how many of each kind did she buy @Mathematics

OpenStudy (hoblos):

let number of blues = x & that of yellows = y => 5x + 8y =82 & x=2y+2 now solve the system to get x=10 y=4

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