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if a+1 is divisible by 3 prove that 4+7a is divisible by 3 too

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jaydenrenee111902

29.09.2020

Mathematics

Step-by-step explanation: We are to find how much would pound of hamburger cost at 4.99 per pound. First of all, changing the given mixed number to an improper fraction to make it easier to solve it further. Rounding off the answer to get $13.72.

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HELP if a+1 is divisible by 3 prove that 4+7a is divisible by 3 too