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OpenStudy (ttp):
A first grade class has 6-year olds and 7-year olds. There are 13 children in the class, and the total of their ages is 83. Which system of linear equations represents the problem? seven x plus six y equals thirteen x plus y equals eighty-three six x plus seven y equals eighty-three x plus y equals thirteen x six x plus seven y equals thirteen x plus y equals eighty-three x seven x plus six y equals eighty-three x plus y equals thirteen
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OpenStudy (anonymous):
6x + 7y = 83 x + y = 13
OpenStudy (anonymous):
Option 'd'
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