Posted by Crystal on Tuesday, July 14, 2009 at 12:37am.
Please solve the inequality
.04 x + .06(12000x) >= 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 9:08am
Shouldn't the answer be less than or = to?

Algebra  Reiny, Tuesday, July 14, 2009 at 9:49am
yes, 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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