To find out which company the O'Donnells should choose and how much they will save, we can set up equations for the total cost of balloons from both Balloon Express and Balloon Mania based on the number of balloons they plan to order.
Let \( x \) represent the number of balloons (which is 30 in this case).
For Balloon Express:
- Cost per balloon = $2
- Delivery fee = $10
The total cost for Balloon Express can be calculated as:
\[
\text{Total Cost}{\text{Express}} = (\text{Cost per balloon} \times x) + \text{Delivery fee}
\]
\[
\text{Total Cost}{\text{Express}} = (2 \times 30) + 10 = 60 + 10 = 70
\]
For Balloon Mania:
- Cost per balloon = $1.50
- Delivery fee = $20
The total cost for Balloon Mania can be calculated as:
\[
\text{Total Cost}{\text{Mania}} = (\text{Cost per balloon} \times x) + \text{Delivery fee}
\]
\[
\text{Total Cost}{\text{Mania}} = (1.5 \times 30) + 20 = 45 + 20 = 65
\]
Total Costs:
- Total Cost for Balloon Express = $70
- Total Cost for Balloon Mania = $65
Conclusion:
To find out how much they will save by choosing Balloon Mania over Balloon Express: \[ \text{Savings} = \text{Total Cost}{\text{Express}} - \text{Total Cost}{\text{Mania}} = 70 - 65 = 5 \]
Therefore, the O’Donnells should choose Balloon Mania, and they will save $5.
Final Response:
Balloon Mania; $5