3 years ago

Please answer the question below

1 answer:

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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