systems of equations wrap up - cabarrus county schools...systems of equations wrap up ! warm up...

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Systems of Equations Wrap Up Warm Up Solve the following systems using any method of your choice. Show ALL work! 1. = + 9 2 = 12 6 2. 14 7 = 112 = 2 16 3. + 2 = 4 6 4 = 56 4. 3 + 8 = 6 2 + 7 = 2 5. At Macs BBQ, two pulled pork sandwiches and three orders of fries cost $19.75. Five pulled pork sandwiches and two orders of fries cost $37. What is the cost for a sandwich? What is the cost of an order of fries? 6. The sum of two numbers is 10. Negative three times the first number minus the second number equals 2. Find the numbers. After the warm up: o Watch the Hahn Academy video for today. o Work on Mad Libs Video Project with your group. Be ready to submit tomorrow! o With 30 minutes left in class, do the Systems Quick Check on your own.

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Page 1: Systems of Equations Wrap Up - Cabarrus County Schools...Systems of Equations Wrap Up ! Warm Up Solve!the!following!systems!using!any!methodof!your!choice.!!Show!ALLwork!! 1.!!=!+9!

Systems of Equations Wrap Up  

Warm Up Solve  the  following  systems  using  any  method  of  your  choice.    Show  ALL  work!  1.  

𝑦 = 𝑥 + 9  2𝑦 = 12 − 6𝑥  

           

2.  −14𝑦 − 7𝑦 = 112  𝑦 = −2𝑥 − 16  

     

3.  𝑥 + 2𝑦 = −4  6𝑥 − 4𝑦 = −56  

           

4.  3𝑥 + 8𝑦 = 6  2𝑥 + 7𝑦 = −2  

           

5.    At  Macs  BBQ,  two  pulled  pork  sandwiches  and  three  orders  of  fries  cost  $19.75.    Five  pulled  pork  sandwiches  and  two  orders  of  fries  cost  $37.    What  is  the  cost  for  a  sandwich?    What  is  the  cost  of  an  order  of  fries?        6.    The  sum  of  two  numbers  is  -­‐10.    Negative  three  times  the  first  number  minus  the  second  number  equals  2.    Find  the  numbers.            • After the warm up:

 o Watch  the  Hahn  Academy  video  for  today.  

o Work  on  Mad  Libs  Video  Project  with  your  group.    Be  ready  to  submit  tomorrow!  

o With  30  minutes  left  in  class,  do  the  Systems  Quick  Check  on  your  own.  

Page 2: Systems of Equations Wrap Up - Cabarrus County Schools...Systems of Equations Wrap Up ! Warm Up Solve!the!following!systems!using!any!methodof!your!choice.!!Show!ALLwork!! 1.!!=!+9!

Practice Solve  the  following  systems  using  any  method  of  your  choice.    Show  ALL  work! 1.  

−𝑥 + 9𝑦 = 46  7𝑥 − 4𝑦 = −27  

     

2.  𝑥 = 39 + 8𝑦  

−9𝑥 + 2𝑦 = −71        

3.  𝑦 = 4𝑦 − 9  

10𝑥 − 40𝑦 = −90            

4.      𝑦 = −3𝑥 + 7  𝑦 = 2𝑥 − 3  

5.  𝑥 + 2𝑦 = 3  4𝑥 + 8𝑦 = 4  

       

6.  𝑥 = 16 − 5𝑦  −4𝑥 + 2𝑦 = 4  

         

5.    Karen  makes  $5  per  hour  babysitting  and  $12  per  hour  giving  music  lessons.    One  weekend,  she  worked  a  total  of  18  hours  and  made  $139.    How  many  hours  did  she  spend  babysitting?                

6.    Erin  bought  4  jars  of  jelly  and  6  jars  of  peanut  butter  for  $19.32.    Adam  bought  3  jars  of  jelly  and  5  jars  of  peanut  butter  for  $15.67.    Find  the  cost  of  a  jar  of  peanut  butter?  

7.    Graham  Gano,  the  kicker  for  the  Carolina  Panthers,  scored  120  points  last  season.    He  scored  all  his  points  on  either  1-­‐point  extra  point  kicks  or  3-­‐point  field  goals.    He  has  made  12  more  extra  point  kicks  than  field  goals.    How  many  of  each  kick  has  he  made?            

8.    Stephan  Curry  is  competing  in  a  three-­‐point  shooting  competition.    For  each  shot  made,  the  player  earns  three  points.    For  each  shot  missed,  the  player  loes  five  points.    After  40  shots,  Curry  has  no  points.    How  many  shots  did  Curry  make?          

Page 3: Systems of Equations Wrap Up - Cabarrus County Schools...Systems of Equations Wrap Up ! Warm Up Solve!the!following!systems!using!any!methodof!your!choice.!!Show!ALLwork!! 1.!!=!+9!