math

the group covered the first 70 miles in 10 hours. then it doubled its paceto travel 280 miles. how long did it takethe group to travel 350 miles?


70 mi/h and 140mi/h
350-70 = 280
280 miles left, 140 miles every 10 hours
so 20 hours
20hrs + 10hrs = 30 hrs
it took the group 30 hours to travel 350 miles

sorry, not -1, +1

asked by susie

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