Mathematics, 28.10.2020 01:00 amoakoh800003

rick bought a book on mathematics for $51.75, a book on science for $74.52, a book on history $ 25.47 , and a book on general knowledge for $ 36.60 how much did he spend the books altogether

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Mathematics, 21.06.2019 16:30, jrfranckowiak

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Mathematics, 21.06.2019 22:30, lekepius3715

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

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rick bought a book on mathematics for $51.75, a book on science for $74.52, a book on history $ 25.4...