mathnotes

Katie feeds her cat cup of food each day. She buys a bag of cat food that contains 16 cups of dry food.

How many days will the cat food last?

Hint: Divide 16 cups into  

 

 

Given: In triangle ABC, m A=6 x-10, m B=2 x, and m C=8 x-2.

Prove: x=12

 

Statement:                                  Reason:

1. m A = 6x - 10                                      1. Given

2. m B = 2                                            2. Given

3. m C = 8x - 2                                     3. Given

4. m A + m B + m C = 180                4. Triangle Angle

5. 6x - 10 + 2x + 8x - 2 = 180                   5. [?]                                

6. 16x - 12 = 180                                     6. Algebra

7. 16x = 192                                            7. Addition

8. x = 12                                                 8. Property