Goals:  Solve linear inequalities using multiplication and division  Use inequalities to solve real life problems. Eligible Content:  A / A

 Get the variable alone just like we have been doing.  One new rule:  If you multiply or divide by a negative number, you must flip the inequality symbol. > becomes <

3x ≥ x ≥ 5

-4x < x > x ≥ x ≤ 5 Sign flipped because I divided by a negative number!!

x ≤ -2 x < -4 x < -5 x ≤ -64

A.p < 4 B.p < 45 C.p < 75 D.p > 4 Solve 15p < 60.

A.z < 16 B.z < –16 C.z > –16 D.z > 16 Solve –4z > 64.

A. B. C.x < –30 D.x > –30

 Page 295 #2-9

Mateo is walking at a rate of 0.75 mile per hour. He knows that it is at least 9 miles to Onyx Lake. How long will it take Mateo to get there? 0.75x ≥ 9 x ≥ 12 At least 12 hours

 Page 295 #12-28 even #30-34