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Mathematics 16 Online
OpenStudy (anonymous):

Solve for x. -ax + 4b > 9

OpenStudy (anonymous):

If you do not know what a is, then no conclusion can be drawn. Because dividing both sides of an inequality by a negative number changes the sign of the inequality. We do not know if a is positive or negative. What we could do, is present two solutions, depending if a>0 or a < 0.

OpenStudy (anonymous):

If a > 0, then x < (9 - 4b)/-a If a < 0, the x > (9-4b)/-a

OpenStudy (anonymous):

Makes sense?

OpenStudy (anonymous):

well?

OpenStudy (anonymous):

soo it would beeeee x< (9-4b)/-a?

OpenStudy (anonymous):

so the greater or less than sign decides it?

OpenStudy (anonymous):

No....a is a constant which represents a number. We do not know what that constant is. It may be -2 or it may be 47. Depending on what kind of number that constant is will determine if we change the ineuqlaity sign or not. Dividing both sides by a negative number will result in changing the sign of the inequality.

OpenStudy (anonymous):

These are my choices? a. x > 4b-9/a b. x < 9-4b/a c. x < -4b+9/-a d. x > 4b+9/-a

OpenStudy (anonymous):

None of the above. As I said before, we do not know what kind of number a is.

OpenStudy (anonymous):

okay thank you!

OpenStudy (anonymous):

welcome.

OpenStudy (anonymous):

The sum of two consecutive odd integers is 236. What is the smaller integer? a. 115 b. 117 c. 119 d. 113

OpenStudy (anonymous):

Good luck.

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