Posted by Kristina on Wednesday, October 8, 2008 at 12:58am.
There are 33 students in the band. There are 6 more fifthgrade students than thirdgrade students. There are an equal number of third and fourthgrade students. How many thirdgrade students are in the band?

3rd grade  Zack, Wednesday, October 8, 2008 at 1:25am
3rd graders = x
4th graders = x
5th graders = x + 6 (this is because there are 6 MORE 5th graders than 3rd grade)
Make an equation
x + x + (x + 6)= 33
group like terms
3x + 6 = 33
subtract 6 from both sides to get x alone
3x = 27
divide both sides by 3
x = 9
PLUG IN 9 for x
3rd graders = x
4th graders = x
5th graders = x + 6
add them to double check. Good luck

3rd grade  amalia, Thursday, October 23, 2008 at 7:38pm
what ever manger lser

3rd grade  Alexa, Wednesday, October 8, 2008 at 1:31am
Third graders: x
Fifth graders: 6+x
Fourth graders: x (equal number as third graders)
Assuming that there is no other grades in the band
33 = x+(x+6)+x
33 equals the sum of all the parts
33 = 3x +6
Bring together like terms
27 = 3x
Solve for x
x = 9
There are nine third graders in the band

3rd grade  Kristina, Wednesday, October 8, 2008 at 2:16am
Thank you!! I really appreciate your help! ( :

3rd grade  mlead, Wednesday, April 10, 2013 at 7:39pm
there are 9 third graders
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