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أدلة الدراسة > Prealgebra

Summary: Solving Sales Tax, Commission, and Discount Applications

Key Concepts

  • Sales Tax The sales tax is a percent of the purchase price.
    • sales tax=tax ratepurchase price\text{sales tax}=\text{tax rate}\cdot \text{purchase price}
    • total cost=purchase price+sales tax\text{total cost}=\text{purchase price}+\text{sales tax}
  • Commission A commission is a percentage of total sales as determined by the rate of commission.
    • commission=rate of commissionoriginal price\text{commission}=\text{rate of commission}\cdot \text{original price}
  • Discount An amount of discount is a percent off the original price, determined by the discount rate.
    • amount of discount=discount rateoriginal price\text{amount of discount}=\text{discount rate}\cdot \text{original price}
    • sale price=original pricediscount\text{sale price}=\text{original price}-\text{discount}
  • Mark-up The mark-up is the amount added to the wholesale price, determined by the mark-up rate.
    • amount of mark-up=mark-up rate wholesale price\text{amount of mark-up}=\text{mark-up rate wholesale price}
    • list price=wholesale price+mark up\text{list price}=\text{wholesale price}+\text{mark up}

Glossary

commission
A commission is a percentage of total sales as determined by the rate of commission.
discount
An amount of discount is a percent off the original price, determined by the discount rate.
mark-up
The mark-up is the amount added to the wholesale price, determined by the mark-up rate.
sales tax
The sales tax is a percent of the purchase price.

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