That depends on the country/ state but typically about a half (50%).
In South Carolina, a life sentence typically means the offender will serve a minimum of 30 years before becoming eligible for parole. However, for certain offenses, such as murder, a life sentence may mean imprisonment without the possibility of parole.
85 percent
No, that is why it is called a MANDATORY minimum sentence.
In the UK, normally the sentence actually served is two thirds, but this is dependent on parole or judge's instructions. Probably around 7 - 8 years with good behavior. In the US some states award time for good behavior, some states have minimum sentencing laws. The typical US criminal sentence will have two time periods, the minimum and the maximum. The minimum will be anywhere from more than a year to 40 or more years. The maximum will be anywhere from more than a year to life. The only sentence in the US that is not issued without a minimum is "Life without the possibility of parole." In a state that follows minimum sentence laws, if the minimum sentence is 11 years, the offender will serve 11 years.
Typically, when an offender receives multiple sentences, they serve them concurrently (at the same time) unless the judge specifically orders that they be served consecutively (one after the other). Factors such as the nature of the offenses, sentencing guidelines, and the judge's discretion can influence whether the sentences are served concurrently or consecutively.
It depends entirely on what you were charged with - NOT - what sentence the judge imposed. If the statute written by the legislature calls for a sentence of MORE THAN one year it is, by definition, a felony. The judge, at his discretion, can sentence persons convicted of felony-class crimes to serve less than the minimum sentence, however, the offender remains a convicted felon nonetheless.
"Truth in Sentencing" is the colloquial or media term applied to the mandatory minimum time laws. The only guarantee within these laws from state to state is that offenders will serve the minimum portion of their sentence, effectively eliminating the possibility of earned good behavior credit. The Violent Crim Control and Law Enforcement Act of 1994 set aside $4 billion in federal prison construction funds (called Truth in Sentencing Incentive Funds) for states that adopt truth in sentencing laws and are able to guarantee that certain violent offenders will serve 85% of their sentenceTruth in sentencing - a close correspondence between the sentence imposed on an offender and the time actually served before release from prison.
90 days in jail
I doubt any state tracks this percentage over all. There are some states that track the percentage of minority inmates that serve greater sentences. In Michigan, it is generally accepted that the inmate will serve minimum of twice his minimum sentence. Ohio is probably pretty similar.
If found guilty you are always handed the sentence of life the judge wil also say the minimum you have to serve before you can aply for parole
While In prison Every 17 days is equavilant to a 30 day month. so its safe to assune that inmates serve 75 percent of their sentence
Twenty years. A prison sentence is typically issued in two parts, the minimum (the time you must serve before being eligible for parole) and the maximum (the time you must serve--statutory time--before you would be discharged). If the minimum is twenty years, and there is no "Good Time" law in your state, then you will serve twenty years before being considered for parole. With such a long minimum, it is highly unlikely you will receive parole your first time up. It is most likely that you will serve until the halfway mark between your minimum and maximum. If the maximum (statutory time) is twenty years, refer to your minimum and check your expected release date. If you were given a flat twenty year sentence, you will serve twenty years, provided there is no Disciplinary Credit awarded in your state.