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April 19, 2015

April 19, 2015

Posted by **Nancy** on Thursday, April 5, 2012 at 2:19pm.

Use 1/R=1/r1+1/r2.

r2= ohms?

- Algebra 2 -
**Steve**, Thursday, April 5, 2012 at 2:56pmjust plug and chug:

1/7 = 1/r2 + 1/15

1/7 - 1/15 = 1/r2

8/105 = 1/r2

r2 = 105/8 = 13.125

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