SOLUTION: daughter is doing inequalities and has a problem. -8d > -56. My answer was d > 7. She came up with d < 7. Which is correct? Do you ever change the inequality sign because you use -
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Question 729750: daughter is doing inequalities and has a problem. -8d > -56. My answer was d > 7. She came up with d < 7. Which is correct? Do you ever change the inequality sign because you use - numbers in multiplication and division? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! daughter is doing inequalities and has a problem. -8d > -56. My answer was d > 7. She came up with d < 7. Which is correct? Do you ever change the inequality sign because you use - numbers in multiplication and division?
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When you mulitply or divide by a negative, the polarity changes.
-8d > -56
-d > -7
Add d
0 > d - 7
Add 7
7 > d or d < 7
