To understand the costs associated with the two types of lunches, let's look at the breakdown and then compute the required totals and differences.
### Total Economic Cost per Lunch of the Current Lunch
The current lunch costs are detailed as follows:
- Main course: \[tex]$1.15
- Side dish: \$[/tex]0.30
- Dessert: \[tex]$0.30
- Beverage: \$[/tex]0.30
To find the total economic cost per lunch of the current lunch, we add these values together:
[tex]\[
1.15 + 0.30 + 0.30 + 0.30 = 2.05
\][/tex]
So, the total economic cost per lunch of the current lunch is [tex]\(\$2.05\)[/tex].
### Total Economic Cost per Lunch of the Healthier Lunch
The healthier lunch costs are detailed as follows:
- Main course: \[tex]$1.85
- Side dish: \$[/tex]0.90
- Dessert: \[tex]$0.10
- Beverage: \$[/tex]0.05
To find the total economic cost per lunch of the healthier lunch, we add these values together:
[tex]\[
1.85 + 0.90 + 0.10 + 0.05 = 2.90
\][/tex]
So, the total economic cost per lunch of the healthier lunch is [tex]\(\$2.90\)[/tex].
### Comparison of the Total Costs
To determine how much more the healthier lunch will cost compared to the current lunch, we compute the difference between the two totals. Subtract the total cost of the current lunch from the total cost of the healthier lunch:
[tex]\[
2.90 - 2.05 = 0.85
\][/tex]
Thus, the healthier lunch will cost \[tex]$0.85 more than the current lunch.
In summary:
- The total economic cost per lunch of the current lunch is \(\$[/tex]2.05\).
- The total economic cost per lunch of the healthier lunch is [tex]\(\$2.90\)[/tex].
- The healthier lunch costs [tex]\(\$0.85\)[/tex] more than the current lunch.
