You're given a worksheet titled
“Markup, Discount, and Tax” from Kuta Software. The goal is to
find the selling price of each item, based on either:
-
Cost + Markup % → Selling Price = Cost × (1 + Markup%)
-
Original Price – Discount % → Selling Price = Original Price × (1 – Discount%)
Let’s solve each problem step by step.
---
🔢 1) Cost of a sled: $99.50 | Markup: 95%
> Selling Price = Cost × (1 + Markup%)
> = 99.50 × (1 + 0.95) = 99.50 × 1.95
> =
$194.025 → Round to nearest cent:
$194.03
✔ Answer: $194.03
---
🔢 2) Cost of a comic book: $3.95 | Markup: 20%
> Selling Price = 3.95 × (1 + 0.20) = 3.95 × 1.20
> =
$4.74
✔ Answer: $4.74
---
🔢 3) Cost of an oil change: $18.00 | Markup: 70%
> Selling Price = 18.00 × (1 + 0.70) = 18.00 × 1.70
> =
$30.60
✔ Answer: $30.60
---
🔢 4) Cost of a CD: $14.50 | Markup: 30%
> Selling Price = 14.50 × (1 + 0.30) = 14.50 × 1.30
> =
$18.85
✔ Answer: $18.85
---
🔢 5) Cost of an MP3 player: $129.50 | Markup: 60%
> Selling Price = 129.50 × (1 + 0.60) = 129.50 × 1.60
> =
$207.20
✔ Answer: $207.20
---
🔢 6) Cost of an oil change: $21.95 | Markup: 65%
> Selling Price = 21.95 × (1 + 0.65) = 21.95 × 1.65
> =
$36.2175 → Round to
$36.22
✔ Answer: $36.22
---
🔢 7) Cost of a pen: $0.95 | Markup: 60%
> Selling Price = 0.95 × (1 + 0.60) = 0.95 × 1.60
> =
$1.52
✔ Answer: $1.52
---
🔢 8) Cost of a computer: $1,850.00 | Markup: 75%
> Selling Price = 1850.00 × (1 + 0.75) = 1850.00 × 1.75
> =
$3,237.50
✔ Answer: $3,237.50
---
🔢 9) Original price of concert tickets: $100.00 | Discount: 21%
> Selling Price = 100.00 × (1 – 0.21) = 100.00 × 0.79
> =
$79.00
✔ Answer: $79.00
---
🔢 10) Original price of a book: $18.50 | Discount: 45%
> Selling Price = 18.50 × (1 – 0.45) = 18.50 × 0.55
> =
$10.175 → Round to
$10.18
✔ Answer: $10.18
---
🔢 11) Original price of a telescope: $99.99 | Discount: 13%
> Selling Price = 99.99 × (1 – 0.13) = 99.99 × 0.87
> =
$86.9913 → Round to
$86.99
✔ Answer: $86.99
---
🔢 12) Original price of a CD: $22.99 | Discount: 5%
> Selling Price = 22.99 × (1 – 0.05) = 22.99 × 0.95
> =
$21.8405 → Round to
$21.84
✔ Answer: $21.84
---
## 📝 Final Answers Summary:
| Problem | Selling Price |
|---------|---------------|
| 1 | $194.03 |
| 2 | $4.74 |
| 3 | $30.60 |
| 4 | $18.85 |
| 5 | $207.20 |
| 6 | $36.22 |
| 7 | $1.52 |
| 8 | $3,237.50 |
| 9 | $79.00 |
| 10 | $10.18 |
| 11 | $86.99 |
| 12 | $21.84 |
---
## 🧠 Key Concept Recap:
-
Markup: Add percentage to cost → Multiply cost by (1 + markup rate).
-
Discount: Subtract percentage from original price → Multiply original price by (1 – discount rate).
- Always round money to
two decimal places (nearest cent).
Let me know if you’d like to see how these formulas work visually or with diagrams!
Parent Tip: Review the logic above to help your child master the concept of calculating prices using discounts worksheet.
