Express the situation as a system of two equations in two
variables. Be sure to state clearly the meaning of your x-
and y-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 $35,500 to 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 contact
128,000 voters using the allocated funds?
x | = | TV ads |
y | = | radio ads |
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