Question #3d3bd

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Answer 1 · 2017-10-11T00:11:56

$85$ inches per minute

$12$ inches $=1$ foot and $60$ minutes $=1$ hour

So:

$(425 ft)/(1 hr)xx(1 hr)/(60 m)xx(12 i)/(1 ft)$

Cancel units:

$(425 cancel(ft))/(1 cancel(hr))xx(1 cancel(hr))/(60 m)xx(12 i)/(1 cancel(ft))$

Multiply across:

$(425 xx 12 i)/(60 m)=(5100 i)/(60 m)=85$ inches per minute