Question
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
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 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 $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?
x | = | _____________TV ads |
y | = | ______________radio ads |
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