As you move fro grade to grade, the number of singers i the choir club doubles. If the fourth grade has 36 singers, how many singers are in the second grade choir club? How many are in the sixth grade club?
2007-03-21 13:09:59 · 5 answers · asked by Joseph K 1 in Education & Reference ➔ Homework Help
If it doubles as you move up, then it halves as you move down.
If in the 4th grade there are 36, then in the 5th there are 36x2=72, and in the 6th grade there are 72x2=144.
Now again, if in the 4th grade there are 36, then in the 3rd grade there are 36/2=18, and in the 2nd grade there are 18/2=9.
2007-03-21 13:15:01 · answer #1 · answered by henchook 2 · 0⤊ 0⤋
If it doubles with every grade then you would:
For the third grade, you'd divide 36 by 2 = 18
For the second grade, you'd divide 18 by 2 = 9
For the 5th grade you would multiply 2 with 36 = 72
For the 6th grade you would multiply 2 with 72 = 144
2007-03-21 13:14:25 · answer #2 · answered by Ana 4 · 0⤊ 0⤋
you cant work that out?
if grade 1 has one singer grade 2 has 2, grade 3, 4 and grade 4, 8 and so on.
hope that helps
second grade should be 9, and 144 in grade 6 ?
2007-03-21 13:15:34 · answer #3 · answered by whizzbitz 2 · 0⤊ 0⤋
i'm sure there is a simple algebraic formula to help you solve this, like g+1 (grade plus one) = 2s (2 lots of the singers), it's been too long for me so i'll think about it manually.
working backwards....
4th grade = 36
so 3rd grade = 18
and 2nd grade = 9
working forwards......
4th grade = 36
5th grade = 72
6th grade = 144
2007-03-21 13:16:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
SECOND GRADE 9
SIXTH GRADE144
2007-03-21 13:19:30 · answer #5 · answered by jambi_bambi 2 · 0⤊ 0⤋