Solving MultiStep Equations Mrs Yow If you could
- Slides: 11
Solving Multi-Step Equations Mrs. Yow
If you could choose any county to visit, would you choose IRELAND?
Interesting facts about red heads: � Red hair is the rarest natural hair color in humans. Only 1 -2% of the human population has red hair. � Countries with the most redheads: Scotland Ireland � Red hair is caused by a variant of the MC 1 R gene, which is found on Chromosome 16.
More interesting facts…. � One of Mrs. Yow’s BFF’s is a red head! � The gene for red hair is a recessive gene, meaning it is weaker than other genes like the brown hair gene. Because of this, in order to have natural red hair, a person needs to have red haired ancestors present on both the mother's side and the father's side of the family. � � It is associated with fair skin color, freckles, and sensitivity to ultraviolet light (more prone to skin cancer). �
Even more interesting facts…. � Redheads feel more pain than other people. � 1) Red haired people need more anesthesia than other people. Studies show that redheads need 20% more anesthesia to knock them out during a surgery that others. Redheads are often portrayed as “fiery-tempered”. It was noted that this fiery temper may have helped give them the aggression they needed to survive in the harsh northern climates where they originated from. � 2) Red heads also are resistant to local anesthesia, so trips to the dentist are often feared. � 3) Red heads also feel thermal pain much sooner than others. � Cultural reaction to redheads: Varies from ridicule to admiration.
How does this relate to equations? �The Davis Family wants to save $900 to go to Ireland. They save $45 a week and now have $180. To find how many weeks w it will take to have $900, we can solve the following equation: � 180 + 45 w = 900
What are multi-step equations? �Equations that require more that two steps in order to get the variable alone. �We will solve these equations using the D-C-M-S method.
D-C-M-S METHOD? ? ? �D – Distribute to parenthesis �C – Combine any like terms �M – Move all variables to one side �S – Solve (get variable alone)
D-C-M-S � 4(y-1) =36
D-C-M-S �m+2 m-4=14
D-C-M-S � 2(x+1)-x=16
Leown
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