When i first saw these, i thought they were way over my head. But i sat down and well...solved itwooo
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7h20min = 22/3 hrs
t = total time
d = distance
t = (d/15)+(d/18)
22/3 = (18d+15d)/270
22/3 = (33d)/270
1980=33d
d = 60
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Im so proud
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