## Conversion formula just how to transform 72 days come weeks?

We know (by definition) that:1⁢d≈0.14285714⁢wk

We can set up a relationship to deal with for the number of weeks.

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1⁢d72⁢d≈0.14285714⁢wkx⁢wk

Now, we cross multiply to resolve for our unknown x:

x⁢wk≈72⁢d1⁢d*0.14285714⁢wk→x⁢wk≈10.28571408⁢wk

Conclusion:72⁢d≈10.28571408⁢wk

## Approximation

An almost right numerical an outcome would be: seventy-two days is about ten suggest two eight weeks, or alternatively, a week is around zero point one zero time seventy-two days.

## Units involved

This is how the systems in this conversion room defined:

### Days

"A day is a unit that time. In usual usage, it is either an interval same to 24 hours or daytime, the consecutive period of time during which the sunlight is above the horizon. The period of time during which the planet completes one rotation v respect to the sun is referred to as a solar day. Several definitions of this universal human ide are provided according come context, need and convenience. In 1960, the second was redefined in terms of the orbital activity of the Earth, and was designated the SI base unit that time. The unit of measurement day, redefined in 1960 together 86 400 SI seconds and symbolized d, is not an SI unit, yet is welcomed for use through SI. A civil day is normally 86 400 seconds, add to or minus a feasible leap 2nd in Coordinated universal Time (UTC), and occasionally add to or minus one hour in those locations that adjust from or to daylight saving time."

### Weeks

"A main is a time unit same to seven days. That is the traditional time period used because that cycles of remainder days in many parts of the world, mostly alongside—although no strictly component of—the Gregorian calendar.

See more: Born In 1964 How Many Years Ago Was 1964 : The World 50 Years Ago

The work of the mainly were named after the timeless planets (derived native the astrological device of planetary hours) in the roman era. In English, the names are Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday."

Wikipedia web page of weeks

## Footnotes

<1> The precision is 15 far-ranging digits (fourteen number to the best of the decimal point).