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You may simplify the answer.
You may simplify the answer.
Geometry help , only answer if your sure please. The question is in the attached
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Time for entire trip = 2d/30 hours
Time for first part of trip = d/60.
Time for second part of trip, is given by:
Therefore the speed during the second distance d is 20 mi/h.
Time for first part of trip = d/60.
Time for second part of trip, is given by:
Therefore the speed during the second distance d is 20 mi/h.