Posted by **marsha** on Wednesday, October 3, 2012 at 6:07pm.

There are twice as many girls as boys in the 4th grade classes at Joe's school. There are a total of 81 4th graders. How many boys and girls are there in the 4th?

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**bobpursley**, Wednesday, October 3, 2012 at 6:16pm
G+B=81

G=2B

2B+B=81

3B=81

B=27

G=54

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**Tuker**, Wednesday, October 3, 2012 at 8:00pm
LIIIIIIEERRRRR!!!! Thats Not The Right Answer!!!! ^^^^^

>.<

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**my name**, Friday, February 14, 2014 at 5:41pm
5670

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**cresia**, Thursday, April 3, 2014 at 6:27pm
which is the best estimate for the height of the average door inside a house

a.8 inches

b.8 yards

c.8feet

d.meters

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**angel**, Wednesday, September 3, 2014 at 6:56pm
414divide by 9

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**Victoria.**, Tuesday, October 14, 2014 at 4:48pm
How many sixths are equivalent to 1 half?

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**cer**, Tuesday, February 10, 2015 at 5:59pm
1\3

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**Anonymous**, Tuesday, September 22, 2015 at 6:23pm
Use number sense explain how you can tell if your estimate answer is greater or less than the exact answer to a multiplication problem

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**joshua**, Friday, October 9, 2015 at 6:58pm
8=5

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**Anonymous**, Wednesday, November 11, 2015 at 4:01pm
If a penny has a mass of 48 grams, about what would be the mass of 699 pennies?

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**Mackenzie**, Thursday, November 12, 2015 at 7:54pm
Masha You have to divde 81 divde 2=40.5

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**Allie**, Wednesday, November 18, 2015 at 4:49am
160 hours per hour

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