1.Carry out the row operation on the matrix. 1_ 5 R 2 R 2 on9344 05100 2.Interpret...
Question:
1.Carry out the row operation on the matrix.
1_
5 R2R2on9344
05100
2.Interpret the augmented matrix as the solution of a system of equations. (Enter your answers as a comma-separated list. If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)
109
017
(x,y)
3.Solve the system by row-reducing the corresponding augmented matrix. (Enter your answers as a comma-separated list. If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)
2x+y=17
x+y=13
(x,y)
4.Express the situation as a system of two equations in two variables. Be sure to state clearly the meaning of yourx- andy-variables. Solve the system by row-reducing the corresponding augmented matrix. State your final answer in terms of the original question.
For the final days before the election, the campaign manager has a total of$41,000to spend on TV and radio campaign advertisements. Each TV ad costs $3000 and is seen by 10,000 voters, while each radio ad costs $500 and is heard by 2000 voters. Ignoring repeated exposures to the same voter, how many TV and radio ads will contact146,000voters using the allocated funds?
x=TV ads
y=radio ads