Answer: y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x . ") This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.
Step-by-step explanation:
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it would be $20 a year so it would be a 4% interest rate
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surely it's 200 marbles bc 2/4 is equal to 1/2 and if u then half 400 you get 200
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