Final answer:
The total cost of one Snickers bar and one Oh Henry is $1.70, found by solving the system of equations generated from the given scenarios.
Step-by-step explanation:
To determine the total cost of one Snickers bar and one Oh Henry bar, we can set up a system of equations based on the information provided. Let's let S represent the cost of one Snickers bar and O represent the cost of one Oh Henry bar.
The first equation from the first scenario is:
2S + O = $2.55
The second equation from the second scenario is:
3S + 2O = $4.20
We can solve this system of equations in various ways, such as substitution or elimination. Once we find the values of S and O, we can calculate the total cost of one Snickers and one Oh Henry by simply adding S + O.
After solving, we find that:
S = $0.85
O = $0.85
Thus, the total cost of one Snickers bar and one Oh Henry is:
$0.85 + $0.85 = $1.70