Mathematics, 18.08.2020 04:01 foxesforlife45

82.) a varies directly as b and inversely as the square of c, and a=10, when b=8 and c=2. Find a when b=20 and c=5. 83.) During a canoe trip, Roberto paddled twice as many hours as Edward, and Jim paddled for one hour. If the three of them paddled less than a total of ten hours, what is the number of hours Roberto could have paddled?

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82.) a varies directly as b and inversely as the square of c, and a=10, when b=8 and c=2. Find a whe...