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Mathematics, 03.04.2020 01:29 ayoismeisalex

Andrea has some money. Her brother gives her 7 coins worth 23 cents and now she has 73 cents. If she started with 5 coins, what coins did Andrea's brother give her and what coins did Andrea start with?

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Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

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the first one

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just id the test.

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Andrea has some money. Her brother gives her 7 coins worth 23 cents and now she has 73 cents. If she...

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