Suppose that in one week, your company takes in $2,220 in sales at one of its cell phone stores. The price breakdown per phone is as follows:
Cell phone model A4: $35
Smartphone Z20: $50

Suppose that a total of 51 phones were sold.
a.Set up the system of equations that needs to be solved to determine how many of each type of phone were sold. Give a clear definition of the variables in the system.
b.Solve the system of equations, showing clearly how the solution was determined, and state the results clearly in light of the real-world situation.
c.Verify your results of the 2 linear e

Question

Suppose that in one week, your company takes in $2,220 in sales at one of its cell phone stores. The price breakdown per phone is as follows:
Cell phone model A4: $35
Smartphone Z20: $50 

Suppose that a total of 51 phones were sold.  
a.Set up the system of equations that needs to be solved to determine how many of each type of phone were sold. Give a clear definition of the variables in the system.
b.Solve the system of equations, showing clearly how the solution was determined, and state the results clearly in light of the real-world situation.
c.Verify your results of the 2 linear e

hero · Answer

Let's go back to vyew

hero · Answer

http://vyew.com/room#/418625/Open_Study

hero · Answer

I don't know why no one else helps you with these

anonymous · Answer

lol their long questions i think thats why rofl

hero · Answer

Well, I have a surprise for you

anonymous · Answer

yeah?

hero · Answer

Come to vyew and I'll tellyou about it

anonymous · Answer

lol ok
c.Verify your results of the 2 linear equations by graphing in the desired graphing program and paste the graph in your assignment document (edit/copy image).
d.Explain how the results are verified by the graph.

hero · Answer

x = Cell Phone Model A4
y = Smart Phone Z20

a. Set up the system: 
x + y = 51
35x + 50y = 2220

b. Solve the system: 
y = 51 - x
y = (2220 - 35x)/50

y = y 

50(51-x) = 2220 - 35x
2550 - 50x = 2220 - 35x
30 = 15x
30/15 = x
2 = x
y = 49

c. Graph these two equations:
y = 51 - x
y = (2220 - 35x)/50

The two lines intersect at (x,y) = (2,49)

d. The results are verified by the graph because the same solution obtained by algebraic methods are also found using the graphing methods

anonymous · Answer

very Nice!!! Thanks Hero!

hero · Answer

You assume I still have your email. I don't

anonymous · Answer

lol doh! i appologize about that. my e-mail is romieislam@live.com