web2.0calc
 
+0  
 

Algebra and percents

0
835
1
avatar
[size=150][size=200][/size][/size] There were 12 students on the math team last year. This year the number of students on the team increased by 66 2/3%. How many
students are on the math team this year?

The number 100 is increased by 20%. The result is then decreased by 20%. Is the final result 100? Explain.



HELP PLEASE?!
 Mar 27, 2012

1+0 Answers

 #1
avatar+3144 
0
[input]12 * (1+(66 2/3)/100 )[/input]

[input]100+20%-20%[/input]
100*(1+0.2)*(1-0.2)

[input](1+0.2)*(1-0.2)[/input]
factor is smaller 1, so it must be less that 100
 Mar 27, 2012

0 Online Users

Top Users

avatar+128460 CPhill moderator
avatar+118608 Melody moderator
avatar+33615 Alan moderator
avatar+14913 asinus moderator
avatar+9519 MaxWong
avatar+3144 admin administrator
avatar+2440 GingerAle
avatar+1763 tomtom
avatar+1484 bader
avatar+1085 parmen
avatar+1032 kittykat

Sticky Topics