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April 20, 2014

April 20, 2014

Posted by **Crystal** on Tuesday, July 14, 2009 at 12:37am.

.04 x + .06(12000-x) >= 650

- Algebra -
**Reiny**, Tuesday, July 14, 2009 at 7:47am.04x + 720 - .06x ≥ 650

-.02x ≥ -70

x ≥ -70/-.02

x ≥ 3500

- Algebra -
**Crystal**, Tuesday, July 14, 2009 at 9:08amShouldn't the answer be less than or = to?

- Algebra -
**Reiny**, Tuesday, July 14, 2009 at 9:49amyes, of course you are right.

When dividing by a negative we have to reverse the inequality sign.

Time for my third cup of coffee.

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