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