Q.)  Elapsed time Start time: ? End time: 3:33 Time elapsed 2 Hours 29 minutes  How do I figure out, what is the process?

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Ans.1)  

Answer:-

End Time       3:33

Time Elapsed 2:29

Starting Time  ?

Time Elapsed = End time – Starting time

2:29 = 3:33 – Starting time

Starting time = 3:33 – 2:29

Starting time = 1:04

Therefore the process involve is Subtraction.

Ans.2)  In this project you will summarize what you learned from the material on systems of equations and sets/counting. 

Part I (refer to Chapter 4): 

As a restaurant owner there are many decisions that you need to make on a daily basis, such as inventory levels. You wish to replenish your stock of dishes by purchasing 250 sets for your restaurant. You have available two different dish designs. One design costs $20 per set and the other $45 per set. If you only have $6,800 to spend, how many of each design should you order? Hint: Let x = the number of $20 dishes and y = the number of $45 dishes.

• Solve the equations for the different dish designs to be ordered with the desired technique learned (graphing, substitution, elimination, matrix). 
• Explain how to check your solution for both equations.

Part II (refer to Chapter 7):

Universal sets have many applications in the real world.