Sairahid Sairahid

Mathematics

Answered

The mean of 20 numbers is 18. If 3 is added to each of the first ten numbers, find the mean of the new set of 20 numbers.

Sagot :

Konrad509id Konrad509id

x - sum of 20 numbers

[tex]\frac{x}{20}=18\\ x=360\\\\ \frac{x+3\cdot10}{20}=\frac{x+30}{20}\\ \frac{360+30}{20}=\frac{390}{20}=19.5[/tex]

Answer Link

ID Other Questions

Put The Verbs In Brackets Into The Correct Passive Tense.1.A:Thoose Shoes Look So Comfortable.B:They .................(make)in Italy2.A:Why Didn`t You Fly To Mo

Which Of The Following Accurately Describes The White Army?a) Hoped To Create A Military Dictatorshipb) Wanted To Redistribute Landc) Was Headed By Leon Trotsky

1) What Is Clergy?2) Why Do You Think People Left Land To The Church When They Died?3) What Is A Religious Order?4) Why Do You Think Monks And Friars Owned No P

If An Explosive Shell Can Travel 500 Yards In 1.5 Seconds, A Shell Bursts With A 25 Yard Diameter Of Damage And It Takes 3 Seconds For The Fuse I The Shell to G

Jeff Bought A New Car $10,450. He Know This Car's Value Will Decrease By 20% Each Year. Jeff Writes The Following Function To Model The Cost Of His Car After T

If An Explosive Shell Can Travel 500 Yards In 1.5 Seconds, A Shell Bursts With A 25 Yard Diameter Of Damage And It Takes 3 Seconds For The Fuse I The Shell to G

Can Someone Read My Essay And Say What I Have To Improve Also Tell Me What I Should Put For My Conclusion. Thank You! “Love Exists” True Love Is When You Are Co

As The Value Of X Increases, Which Of The Following Functions Would Eventually Exceed To The Other Three?1) F(x)=1000x2) F(x)=100x²3) F(x)=50x³2) F(x)=2^x

What Are Some Possible Advantages Of Having Only Two Powerful Political Parties? What Are Some Possible Disadvantages?

An Ecologist Counts Weeds To Monitor Their Populations. Which Of The Following Best Describes The Ecologist Methods?