To complete the questions based on the provided chart for the presents Winona and Takada are considering, we will calculate the total paid for each present using the given cost and discount information.
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Power tools
- Cost: \( d \)
- Discount: 15%
- Total Paid:
\[ \text{Total Paid} = d - (0.15 \times d) = d(1 - 0.15) = d(0.85) = 0.85d \]
-
Water skis
- Cost: \( d + 15 \)
- Discount: 25%
- Total Paid:
\[ \text{Total Paid} = (d + 15) - (0.25 \times (d + 15)) = (d + 15) \times (1 - 0.25) = (d + 15) \times 0.75 \] \[ = 0.75(d + 15) = 0.75d + 11.25 \]
-
Jewelry
- Cost: \( d - 5 \)
- Discount: 10%
- Total Paid:
\[ \text{Total Paid} = (d - 5) - (0.10 \times (d - 5)) = (d - 5) \times (1 - 0.10) = (d - 5) \times 0.90 \] \[ = 0.90(d - 5) = 0.90d - 4.50 \]
Summary of Total Amounts Paid:
- Power tools: \( 0.85d \)
- Water skis: \( 0.75d + 11.25 \)
- Jewelry: \( 0.90d - 4.50 \)
If you need further calculations or clarifications, feel free to ask!
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