a.) Formulate the situation as a system of two linear equations
in two variables. Be sure to state clearly the meaning of your x-
and y-variables. 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 contributing
either $5,000 or $10,000. If the partnership raised $405,000, then
how many investors contributed $5,000 and how many contributed
$10,000? x =_________ $5,000 investors y =_________ $10,000 investors b.)Express the situation as a system of two equations in two
variables. Be sure to state clearly the meaning of your –
and -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 $32,500 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
116,000 voters using the allocated funds?