Percents Math 6/7 Flashcards
What is a percent?
A percent is a ratio expressed as a fraction of 100.
True or False: 50% is equivalent to 0.5.
True.
What does the term ‘percentage point’ refer to?
It refers to the difference between two percentages.
Fill in the blank: To convert a decimal to a percent, you multiply by _____ .
100.
If a shirt originally costs $40 and is on sale for 25% off, what is the sale price?
$30.
What is the formula to calculate a percentage of a number?
Percentage = (Part / Whole) × 100.
True or False: 100% means the whole amount.
True.
What percent is equivalent to the fraction 1/4?
25%.
If a population increases from 200 to 250, what is the percentage increase?
25%.
Fill in the blank: To find 15% of 200, you calculate _____ .
0.15 × 200.
What is the term for a decrease in value expressed as a percentage?
Percentage decrease.
If a student scores 18 out of 20 on a test, what is their score as a percent?
90%.
True or False: A 10% increase followed by a 10% decrease will return to the original amount.
False.
What is the percent change formula?
Percent Change = [(New Value - Old Value) / Old Value] × 100.
Fill in the blank: 75% of a number is equivalent to _____ of that number.
0.75.
If a product costs $80 and is subject to a 5% sales tax, what is the total cost?
$84.
What is the percent error formula?
Percent Error = |(Actual Value - Experimental Value) / Actual Value| × 100.
True or False: Percentages can only be used with whole numbers.
False.
What is a ‘markup percentage’?
The percentage added to the cost price to determine the selling price.
If a bank offers an interest rate of 3% per annum, how much interest will you earn on $1,000 in one year?
$30.
Fill in the blank: A decrease of 20% from a value of 50 results in _____ .
40.
What does it mean to find a ‘percent of change’?
It indicates how much a value has increased or decreased in relation to its original value.
If you have a 40% discount on a $200 item, what is the discounted price?
$120.
True or False: A percent can be greater than 100.
True.
What is the relationship between fractions, decimals, and percentages?
They are different ways to express the same concept of a part of a whole.
