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Mathematics, 07.09.2021 21:50 fatty18

Vlad has 9 coins, all quarters and dimes, worth a total of $1.80. This is shown by the system of linear equations, x + y = 9 and 0.25x + 0.1y = 1.8, on the graph. A coordinate grid showing Vlad's Change with Number of Quarters on the x-axis and Number of Dimes on the y-axis with 2 lines. The first line passes through (0, 18) and (6, 3). The second line passes through (0, 9) and (6, 3). How many dimes does he have? 3 6 7 9

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Vlad has 9 coins, all quarters and dimes, worth a total of $1.80. This is shown by the system of lin...
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