Review Percent: Tape Diagrams & Double Number Line

Front

What is a tape diagram?

Back

A tape diagram is a visual representation used to illustrate the relationship between quantities, often used in solving problems involving ratios, fractions, and percentages.

Front

What does a double number line represent?

Back

A double number line is a visual tool that shows two sets of numbers along parallel lines, helping to illustrate the relationship between two quantities, often used in ratio and proportion problems.

Front

What is the equation for a tape diagram that represents a decrease of 25%?

Back

Front

How do you calculate a percentage decrease?

Back

To calculate a percentage decrease, subtract the new value from the original value, divide by the original value, and multiply by 100.

Front

If a table costs $100 and is on sale for 20% off, what is the sale price?

Back

Sale Price = Original Price - (Original Price * Discount) = $100 - ($100 * 0.20) = $80.

Front

What is the formula to find the amount of markdown?

Back

Amount of Markdown = Original Price * Discount Percentage.

Front

If a recipe makes 24 cookies and another recipe makes 50% more, how many cookies does the new recipe make?

Back

New Recipe = Original Recipe + (Original Recipe * 0.50) = 24 + (24 * 0.50) = 36 cookies.

Front

What is 35% of $85?

Back

35% of $85 = 0.35 * 85 = $29.75.

Front

If a candy package originally has 50 ounces and is decreased by 20%, how many ounces are left?

Back

New Amount = Original Amount - (Original Amount * Decrease Percentage) = 50 - (50 * 0.20) = 40 ounces.

Front

What does it mean if a quantity increases by 50%?

Back

It means the new quantity is 1.5 times the original quantity.