Answer
The distance from the house to the lake is (2.5 hr)*(48 mi/hr) = 120 miles. The rerurn trip would take (120 mi)/(40 mi/hr) = 3 hours. Distance equals rate times time, so the distance to the lake is 2 1/2 hours times 48 miles per hour.
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Answer:
14/3 4 2/3, 4.6
Step-by-step explanation:
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1/3
5 red marbles + 10 blue marbles = 15 total marbles
5 red marbles / 15 total marbles = 5/15
5/15 = 1/3