Posted by Stuart on Tuesday, March 1, 2011 at 7:54pm.
12  9 = 15d + 9? please help with operations

Math  Ms. Sue, Tuesday, March 1, 2011 at 7:57pm
Please do not keep posting the same problem over and over. You try to do this one, and I'll check your work in an hour.

Math  Anonymous, Tuesday, March 1, 2011 at 11:38pm
129=15d+9
3=15d+9
39=15d
6=15d
15d= 6
3*5*d= 3*2 Divide with 3
5d= 2 Divide with 5
d= 2/5= 0.4
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