Posted by **Chris** on Friday, November 26, 2010 at 2:22pm.

30 = 12d

- 7th grade math -
**Damon**, Friday, November 26, 2010 at 2:23pm
d = 30/12 = 15/6 = 5/2 = 2 1/2

- 7th grade math -
**Damon**, Friday, November 26, 2010 at 2:24pm
check 12*2 + 6 = 24+6 = 30 sure enough

- 7th grade math -
**A person**, Thursday, December 2, 2010 at 11:06pm
The answer to 30=12d

d=18

- 7th grade math -
**Jasmine**, Wednesday, April 27, 2011 at 4:21pm
30=12d, this means 30 is equal to 12*?

You have to find the missing variable, so d would equal 2.5, or 2 1/2

- 7th grade math -
**Lily**, Saturday, April 30, 2011 at 11:52am
30=12d

Divide both sides by the co-efficient.

12/12 leaves you with d.

30/12 leaves you with 2.5

D=2.5

Check your work.

30= 12*2.5

12*2.5= 30

30=30

- 7th grade math -
**a person**, Wednesday, August 15, 2012 at 11:58am
simplify 6 12/18

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