Solve the system by the elimination method. (Enter your answers as a comma-separated list. If the...

Question

Solve the system by the elimination method. (Enter your answers as a comma-separated list. If the system is inconsistent, enter INCONSISTENTly. If the system is dependent, enter DEPENDENT.) NI( -=
{3x + y = 21
x + 2y = 17
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Solve the system by the elimination method. (Enter your answers as a comma-separated list. If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.) {2x + Sy = 2x + 3y 29
(x, =
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s. -12 rointsiSerrf inMathl XXXXXXXXXXFormulate the situation as a system of two linear equations in two variables. Be sure to state clearly the meaning of your x- and rvanables. Solve the system by the elimination method. Be sure to state your final answer in terms of the original question.
A lawyer has found 60 investors for a limited partnership to purchase an inner-city apartment building, with each contnbutmg either 53,000 Or 56,000. If the partnership raised then how many investors contnbutcd r and how many contributed $6,000? 53,003 Investors Y = cr.-) Investors
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Robert · Accepted Answer

Q5: -
Sol: - 
2 5 35  .........................(1)
2 3 29  .........................(2)
x y
x y
 
 
 
Now, using elimination method we will perform (1) (2)eq eq  and we get  
2 6y   
  3 3y    
Putting eq(3) in eq(1) we get  
  2 5 3 35x   
2 15 35x   
  0 41x 
Hence, solution will be    , 10,3x y   
Q6: -
Sol:- 
,
 of   $3000  
 of   $6000  
Let
Number Investor contributed be x
Number Investor contributed be y
  
Now,  
Statement 1: - Number of investors are 60  
 60x y                
Statement 2: - Total amount contributed $264,000  
3000 6000 264000x y    
 2 88x y   
Now, we have 
60  .........................(1)
2 88  .........................(2)
x y
x y
 
 
Now, using elimination method we will perform (2) (1)eq eq  and we get
  8 32y    
Putting eq(3) in eq(1) we get  
 28 60x   
  2 43x   
Thus,  
 of   $3000 =32
 of   $6000 = 28
Number Investor contributed
Number Investor contributed

Q7: -
28y 
Sol:- 
,
 of   
 of dim   y
Let
Number nickel be x
Number e be
  
Now,  
Statement 1: - Number of coins are 70  
 70x y                
Statement 2: - Total amount contributed $5.9  
5 10 590x y    
Now, we have 
70  .........................(1)
5 10 590  .........................(2)
x y
x y
 
   
Now, using elimination method we will perform (2) 5 (1)eq eq  and we get 
 
  8 34y    
Putting eq(3) in eq(1) we get  
 48 70x   
  2 42x   
Thus,  
 of  = 48
 dim  = 22
Number nickel
Number of e

Q8: -
Sol: -  
,
 of soda bottle sold  
 of  hot dogs sold   y
Let
Number be x
Number be
  
Now,  
Statement 1:

Solve the system by the elimination method. (Enter your answers as a comma-separated list. If the system is inconsistent, enter INCONSISTENTly. If the system is dependent, enter DEPENDENT.) NI( -= {3x...

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