How many hours are there in exactly 3 weeks?

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How many hours are there in exactly 3 weeks?

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Answer 1 · 2018-03-03T21:43:18

See a solution process below:

Explanation:

There are 7 days in a week.

There are 24 hours in a day

Therefore, we can write:

$3"weeks" xx (7"days")/(1"week") xx (24"hours")/(1"day") =>$

$3color(red)(cancel(color(black)("weeks"))) xx (7color(blue)(cancel(color(black)("days"))))/(1color(red)(cancel(color(black)("week")))) xx (24"hours")/(1color(blue)(cancel(color(black)("day")))) =>$

$3 xx 7/1 xx (24"hours")/1 =>$

$3 xx 7 xx 24"hours" =>$

$21 xx 24"hours" =>$

$504"hours"$

There are exactly 504 hours in 3 weeks.

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How many hours are there in exactly 3 weeks?

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