Homework Help: 5th grade math

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

i am a number greater than 40,000 and less than 60,000 my ones digit and tens digits are the same. my ten thousands digit is 1 less tha 3 times the sum of my ones digit and tens digit my thousands digit is half my hundred digit, and the sum of those two digit is 9

5th grade math - Michael, Sunday, August 22, 2010 at 11:03pm
Lets 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 8:11pm
yeah........ answer= 53611

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