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The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was \$5 for each t-shirt sold and \$2.50 for each hat sold. the students raised \$840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales? Mathematics, 22.06.2019 02:30
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What is the standard deviation to the nearest 10th of the data if the scores in the represent...
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