Mathematics, 27.01.2021 02:50, bobyjoetato4599

3. Jessica drove 100 miles and then increased her speed by 30 mph for the following 200 miles. If the second part took 1 hour less than the first part,
what was her average speed?

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3. Jessica drove 100 miles and then increased her speed by 30 mph for the following 200 miles. If t...