Topic 3.4 - 3.6 Review
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is percent error?
Back
Percent error is a measure of how inaccurate a measurement is, expressed as a percentage of the actual value. It is calculated using the formula: Percent Error = |(Measured Value - Actual Value)| / Actual Value * 100.
2.
FLASHCARD QUESTION
Front
How do you calculate the final price after a discount and tax?
Back
To calculate the final price after a discount and tax, first apply the discount to the original price, then calculate the sales tax on the discounted price, and finally add the tax to the discounted price.
3.
FLASHCARD QUESTION
Front
What is percent of change?
Back
Percent of change is a way to express the change in a quantity as a percentage of the original amount. It is calculated using the formula: Percent Change = (New Value - Original Value) / |Original Value| * 100.
4.
FLASHCARD QUESTION
Front
How do you calculate a markup percentage?
Back
Markup percentage is calculated by taking the difference between the selling price and the cost price, dividing it by the cost price, and then multiplying by 100. Formula: Markup % = (Selling Price - Cost Price) / Cost Price * 100.
5.
FLASHCARD QUESTION
Front
What is the formula for calculating the selling price after a markup?
Back
Selling Price = Cost Price + (Cost Price * Markup Percentage).
6.
FLASHCARD QUESTION
Front
If a shirt costs $10 and is on sale for 20% off, what is the sale price?
Back
Sale Price = Original Price - (Original Price * Discount Percentage) = $10 - ($10 * 0.20) = $8.
7.
FLASHCARD QUESTION
Front
What is the effect of a 10% sales tax on a discounted price?
Back
To find the final price after applying a 10% sales tax, multiply the discounted price by 1.10 (which represents the original price plus the tax).
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