Maleficent's Practice Problems

 

~Substitution:

1. 2x - 3y = 10
   - x - 2y = 7

 

~Linear Combination

1. 8y - 5x = 12
   4x - 2y = 8

 

~Graphing

1. y = 4x + 3
   3y = -15x - 6

 

**** now try a word problem!***

Princess Aurora is planning to have a 5 hour ball. The royal musicians have started charging $8/hour and the waiters have started charging $6/hour Her budget for the two is $34. How many hours should she have each group work at the ball?

 

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*_Answers_*

1. x = 2 ; y = -2

2. x = 4 ; y = 4

3. The graph should look like the following ....

4. Musicians ("x") = 2
Waiters/waitressess ("y") = 3