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January 26, 2015

January 26, 2015

Posted by **edgar** on Sunday, August 22, 2010 at 10:49pm.

- 5th grade math -
**Michael**, Sunday, August 22, 2010 at 11:03pmLets let the one digit/ ten digit = "a"

Ten thousand digit must be 4 or 5 (between 40001 and 59999)

Ten thousand digit = 3(a+a) -1

= 3(2a) -1

= 6a-1

Try 4

4= 6a -1

5 = 6a

5/6 = a

a= not an integer

Try 5

5= 6a-1

6=6a

a=1

Thousand digit = Hundreds digit / 2

Thousand digit + Hundreds digit = 9

Thousand digit = 3

Hundreds digit = 6

Answer = 53611

- 5th grade math -
**nichole**, Wednesday, August 25, 2010 at 8:11pmyeah........ answer= 53611

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