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Mathematics, 19.10.2019 16:00 bkabyma91

Bob is trying to decide between two cell phone plans. plan a has no flat fee, but the user must pay 10 cents per minute on the phone. plan b requires a one-time fee of $20, but only requires a payment of 5 cents per minute on the phone. what is the minimum whole number of minutes bob has to use the phone for to make plan b the cheaper plan?

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Bob is trying to decide between two cell phone plans. plan a has no flat fee, but the user must pay...
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