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Aloiza [94]
4 years ago
6

Please answer the question below

Mathematics
1 answer:
My name is Ann [436]4 years ago
6 0
20/t=v and 12/t=(v-4)  solve both for t

t=20/v  and t=12/(v-4)  since t=t

20/v=12/(v-4)  cross multiplying...

20v-80=12v

8v-80=0

8v=80

v=10mph

The outbound speed was 10mph
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