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April 19, 2014

April 19, 2014

Posted by **Dean** on Monday, May 10, 2010 at 11:19pm.

-5x > 0

x > 0

Solve each inequality and ch eck your solution.

9x > 81

help please?

-thanks

- Algebra -
**CL**, Monday, May 10, 2010 at 11:23pm-5x > 0

-5x/-5 > 0/-5

x < 0 since we are dividing by a negative, the inequality changes

so, no the answer is not the same

9x > 81

x > 81/9

x > 9

- Algebra -
**Do**, Monday, May 10, 2010 at 11:25pmfirst one no:

when dividing by a negative you need to flip the inequality sign

-5x > 0 = x < 0

x<0 doesn't equal x>0

the second

x> 81/9

x> 9

- Algebra -
**Anonymous**, Monday, May 10, 2010 at 11:28pmA 3-mi cab ride costs $3.00. A 6-mi cab ride costs $4.80. Find a linear equation that models cost c as a function of distance d.

- Algebra -
**Do**, Monday, May 10, 2010 at 11:29pmyou should have posted as a new question

- Algebra -
**Dean**, Monday, May 10, 2010 at 11:37pmCan you help me on this problem as well? (or anyone.)

Solve each inequality and check your solution.

h

- > -7

4

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