Final answer:
The question involves solving a system of linear equations to find out the number of twenty-dollar and fifty-dollar bills in a deposit totaling 70 bills and $3200 in value.
Step-by-step explanation:
The student is tasked with solving a system of linear equations to determine how many twenty-dollar bills and fifty-dollar bills make up a bank deposit totaling 70 bills worth $3200. We set up two equations based on the given information. Let x be the number of twenty-dollar bills and y be the number of fifty-dollar bills. Therefore, we can establish the following equations:
Equation 1 (representing the total number of bills):
x + y = 70
Equation 2 (representing the total value of the bills):
20x + 50y = 3200
By solving this system, we can find the values of x and y that satisfy both equations.