How do you convert 153 hr to s?

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Answer 1 · 2017-01-25T18:49:37

Use the factor-label method with factors $(60" min")/(1" hr") and (60" s")/(1" min")$ .

$(153" hr")/1(60" min")/(1" hr")(60" s")/(1" min")$

Please observe how the units cancel.

First the hours cancel:

$(153cancel(" hr"))/1(60" min")/(1cancel(" hr"))(60" s")/(1" min")$

Next the minutes cancel:

$(153cancel(" hr"))/1(60cancel(" min"))/(1cancel(" hr"))(60" s")/(1cancel(" min"))$

Seconds are the only remaining units, therefore, we do the multiplication:

$(153cancel(" hr"))/1(60cancel(" min"))/(1cancel(" hr"))(60" s")/(1cancel(" min")) = 153(60)(60)" s" = 550800" s"$