Midterm Review Part 2-Calculator (Regular)

Front

What is the formula to calculate the final price including sales tax?

Back

Final Price = Original Price + (Original Price × Sales Tax Rate)

Front

If a T.V costs $990 and the sales tax is 9%, what is the sales tax amount?

Back

Sales Tax = $990 × 0.09 = $89.10

Front

What is the final price of a T.V that costs $990 with a 9% sales tax?

Back

Final Price = $990 + $89.10 = $1,079.10

Front

How do you calculate a tip based on a bill amount?

Back

Tip = Bill Amount × Tip Percentage

Front

If your bill at a restaurant is $27.31 and you want to leave a 23% tip, how much should you tip?

Back

Tip = $27.31 × 0.23 = $6.28

Front

What does it mean for two ratios to be proportional?

Back

Two ratios are proportional if they can be expressed as equivalent fractions.

Front

If the ratio of a/b = 2/3, what is the equivalent ratio?

Back

The equivalent ratio is 4/6.

Front

How do you determine if two ratios are proportional?

Back

Cross-multiply and compare the products.

Front

What is the equation to solve for r in r/1.5 = 2.4?

Back

Multiply both sides by 1.5: r = 2.4 × 1.5 = 3.6

Front

If r/1.5 = 2.4, what is the value of r?

Back

r = 3.6